docv.1.0 List of IWC Ingenieur models (ordered by reference number) 1
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v.1.0 List of IWC Ingenieur models (ordered by reference number) 1
v.1.0 List of IWC Ingenieur models (ordered by reference number) 1 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap stainless steel on leather strap cal. 852 666 A Ingenieur automatic ø: 36.5 mm 1954/55-1958/59 (stainless steel on steel bracelet) h: 13 mm silvered automatic 18 ct. gold on leather strap 666 A Ingenieur automatic black 1959-1967 stainless steel on steel bracelet automatic silvered or 56662) 18 ct. gold on leather strap cal. 8521 666 AD Ingenieur automatic calendar amagnetic to 80,000 A/m w: 46 g (steel on strap) stainless steel on leather strap cal. 853 (=26662 water resistant to 10 atm black stainless steel on leather strap ø: 36.5 mm water resistant to 10 atm h: 13 mm amagnetic to 80,000 A/m w: 46 g (steel on strap) 88 g (steel on steel) also in the sixties briefly called ref. 26662 (gold) and 56662 (steel) ø: 36.5 mm black automatic 1954/55-1958/59 water resistant to 10 atm h: 13 mm (stainless steel on steel bracelet) silvered date 18 ct. gold on leather strap cal. 8531 stainless steel on leather strap amagnetic to 80,000 A/m w: 46 g (steel on strap) water resistant to 10 atm 666 AD (= 36661 Ingenieur automatic calendar or 66661) black automatic 1959-1967 stainless steel on steel bracelet silvered date 18 ct. gold on leather strap cal. 852 766 A ø: 36.5 mm Ingenieur automatic 1954/55-1958/59 automatic amagnetic to 80,000 A/m h: 13 mm optional magnifying lens over date w: 46 g (steel on strap) 88 g (steel on steel) also in the sixties briefly called ref. 36661 (gold) and 66661 (steel) silvered ø: 36.5 mm water resistant to 10 atm (black) h: 13 mm amagnetic to 80,000 A/m 14 ct. gold/steel back on leather strap v.1.0 List of IWC Ingenieur models (ordered by reference number) 2 of 19 case picture reference name movement listed dials measurements remarks silvered ø: 36.5 mm (black) h: 13 mm silvered ø: 36.5 mm water resistant to 10 atm (black) h: 13 mm amagnetic to 80,000 A/m bracelet/strap water resistant to 10 atm 766 A cal. 853 Ingenieur automatic (= 77662) 1959-1967 14 ct. gold/steel back on leather strap automatic amagnetic to 80,000 A/m also in the sixties briefly called ref. 77662 cal. 8521 766 AD Ingenieur automatic calendar automatic 1954/55-1958/59 14 ct. gold/steel back on leather strap date water resistant to 10 atm cal. 8531 766 AD (= 87661) Ingenieur automatic calendar silvered automatic 1959-1967 ø: 36.5 mm 14 ct. gold/steel back on leather strap (black) h: 13 mm date also in the sixties briefly called ref. 87661 water resistant to 12 atm (gold model 6 atm) anthracite cal. 854 866 A stainless steel on croco strap 1967-1970 Ingenieur automatic cal. 854B (= 1908) gilt sunray ø: 37 mm silvered sunray h: 13 mm stainless steel on steel bracelet 1970-1976 automatic 18 ct. gold on croco strap (black, blue) cal. 8541 blue sunray stainless steel on croco strap 866 AD (= 1808) Ingenieur automatic calendar cal. 8541B 1967-1970 gilt sunray stainless steel on steel bracelet automatic 1970-1976 silvered sunray 18 ct. gold on croco strap date amagnetic to 80,000 A/m optional magnifying lens over date (anthracite, black) amagnetic to 80,000 A/m identical with ref. 1908 of new reference numbering scheme ø: 37 mm identical with ref. 1808 of new reference numbering scheme h: 13 mm (gold model 6 atm) w: 56 g (SS/strap) 98 g (SS/SS) amagnetic to 80,000 A/m water resistant to 12 atm v.1.0 List of IWC Ingenieur models (ordered by reference number) 3 of 19 case picture reference name movement listed dials measurements remarks ø: 37 mm identical with ref. 866 AD of old reference numbering scheme h: 13 mm (gold model 6 atm) w: 56 g (SS/strap) 98 g (SS/SS) amagnetic to 80,000 A/m bracelet/strap blue sunray cal. 8541B 1808 (= 866 AD) Ingenieur automatic calendar stainless steel on leather strap 1967-1970 automatic gilt sunray stainless steel on steel bracelet 1970-1976 date silvered sunray 18 ct. gold on leather strap (anthracite, black) water resistant to 12 atm produced in 543 pieces Ingenieur SL 1832 (AKA "Jumbo" or "fat" Ingenieur) cal. 8541ES black ø: 38 x 40 mm gilt h: 14 mm plated rhodium w: 145 g (SS/SS) stainless steel on steel bracelet automatic 1976-1982/83 amagnetic to 80,000 A/m mixte (SS/14 ct. YG) on mixte bracelet date water resistant to 12 atm cushioned movement identical with ref. 866 A of old numbering scheme anthracite stainless steel on leather strap 1908 cal. 854B 1967-1970 Ingenieur automatic (= 866 A) gilt sunray ø: 37 mm silvered sunray h: 13 mm stainless steel on steel bracelet automatic 1970-1976 18 ct. gold on leather strap (black, blue) (gold model 6 atm) amagnetic to 80,000 A/m water resistant to 12 atm produced in 335 pieces cal. 2405 plated rhodium Ingenieur SL quartz 3003 stainless steel on steel bracelet quartz 1976/77-1979 (AKA "Jumbo quartz") water resistant to 12 atm ø: 38 x 40 mm black mixte (SS/14 ct. YG) on mixte bracelet date amagnetic to 40,000 A/m h: 14 mm ? gilt cushioned movement mvmt. based on ETA quartz ebauche black produced in 149 pieces cal. 2250 Ingenieur SL quartz 3303 quartz (AKA "Jumbo quartz") stainless steel on steel bracelet plated rhodium ø: 38 x 40 mm amagnetic to 40,000 A/m mixte (SS/14 ct. YG) on mixte bracelet gilt h: 8 mm ? water resistant to 12 atm 1980-1984/85 date white - roman mvmt. based on ETA quartz ebauche v.1.0 List of IWC Ingenieur models (ordered by reference number) 4 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap black cal. 2250 stainless steel on steel bracelet Ingenieur SL quartz 3305 water resistant to 12 atm plated rhodium quartz 1981/82-1987 mixte (SS/14 ct. YG) on mixte bracelet (AKA "Skinny quartz") ø: 34 mm amagnetic to 40,000 A/m white - roman date mixte (SS/14 ct. YG bezel) on steel bracelet mvmt. based on ETA quartz ebauche gilt black cal. 2250 stainless steel on leather or soft strap Ingenieur SL quartz 3315 water resistant to 12 atm plated rhodium quartz 1983-1987 ø: 34 mm mixte (SS/14 ct. YG) on leather or soft strap (AKA "Skinny quartz") amagnetic to 40,000 A/m white - roman date 18 ct. YG on leather or soft strap mvmt. based on ETA quartz ebauche gilt titanium on titanium bracelet cal. 2210 3350 Ingenieur in titanium quartz 1984/85-1986/87 date mixte (Ti/18 ct. YG bezel) on titanium bracelet mixte (Ti/18 ct. YG) on mixte bracelet black - military water resistant to 12 atm black ø: 32 mm plated rhodium amagnetic to 20,000 A/m both mixte types also with Top Wesselton diamonds on bezel white white cal. 2210 3351 Ingenieur in yellow gold quartz water resistant up to 3 atm 1986/87-1987 18 ct. yellow gold on leather strap (pushbutton safety clasp) (black) ø: 32 mm amagnetic to 20,000 A/m (plated rhodium) date mvmt. based on ETA quartz ebauche (gilt) titanium on titanium bracelet black - military mixte (Ti/18 ct. YG bezel) on titanium bracelet black water resistant to 12 atm cal. 2210 3360 Ingenieur in titanium quartz 1986/87-1989 plated rhodium date mixte (Ti/18 ct. YG bezel) with diamonds on titanium bracelet amagnetic to 20,000 A/m ø: 32 mm white similar to prior ref. 3350, but witlh different bracelet mvmt. based on ETA quartz ebauche v.1.0 List of IWC Ingenieur models (ordered by reference number) 5 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap black - military cal. 2210 titanium on leather strap with pushbutton safety claps Ingenieur in titanium 3361 quartz water resistant to 12 atm plated rhodium 1986/87-1989 and yellow gold ø 32 mm mixte (Ti/14 or 18 ct. YG bezel) on leather strap with pushbutton safety clasp date amagnetic to 20,000 A/m white mvmt. based on ETA quartz ebauche gilt cal. 375 Ingenieur SL automatic 3505 (AKA "Skinny Ingenieur") water resistant to 12 atm (cal. 3752?) stainless steel on steel bracelet black mixte (SS/14 ct. YG) on mixte bracelet plated rhodium 1983-1984/85 automatic ø: 34 mm amagnetic to 40,000 A/m movement based on ETA cal. 2892 date black Ingenieur SL automatic 3506 (AKA "Skinny Ingenieur") cal. 37531 stainless on steel bracelet water resistant to 12 atm plated rhodium automatic 1985-1988/89 ø: 34 mm mixte (SS/14 ct. YG) on mixte bracelet amagnetic to 40,000 A/m (white) date mixte (SS/14 ct. YG bezel) on steel bracelet movement based on ETA cal. 2892 A2 (gilt) stainless steel on steel bracelet (614 pieces produced) cal. 37590 3508 Ingenieur 500,000 A/m automatic 1989-1992 date mixte (SS/18 ct. YG bezel) on steel bracelet (290 piece produced) mixte (SS/14 ct. YG bezel) on steel bracelet (50 pieces produced + 1 on mixte bracelet) cal. 375 Ingenieur SL automatic 3515 (AKA "Skinny Ingenieur") black produced in ca. 955 pieces ø: 34 mm plated rhodium water resistant to 12 atm h: 9 mm white amagnetic to 500,000 A/m w: 100 g (SS/SS) gilt movement based on ETA cal. 2892 A2 black stainless steel on leather or soft strap (cal. 3752?) water resistant to 12 atm plated rhodium 1983-1984/85 ø: 34 mm mixte (SS/14 ct. YG) on leather or soft strap automatic 18 ct. yellow gold on leather or soft strap date amagnetic to 40,000 A/m (white) movement based on ETA cal. 2892 A2 (gilt) v.1.0 List of IWC Ingenieur models (ordered by reference number) 6 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap black Ingenieur SL automatic 3516 (AKA "Skinny Ingenieur") cal. 37531 automatic 1985-1988/89 date mixte (SS/14 ct. YG) on leather or soft strap (black military?) 18 ct. yellow gold on leather or soft strap plated rhodium stainless steel on leather or soft strap white water resistant to 12 atm ø: 34 mm amagnetic to 40,000 A/m movement based on ETA cal. 2892 A2 gilt stainless steel on croco strap (158 pieces) ø: 34 mm mixte (SS/18 ct. YG bezel) (42 pieces) 3518 Ingenieur 500,000 A/m automatic produced in ca. 327 pieces black cal. 37590 plated rhodium 1989-1992 h: 9 mm 18 ct. yellow gold on croco strap (102 pieces) white 18 ct. white gold on croco strap (25 pieces) gilt date w: 100 g (SS/SS) black 3521 Ingenieur "Officially certified chronometer" 1993-1995 stainless steel on steel bracelet automatic 1995-2000/01 mixte (SS/18 ct. bezel) on mixte bracelet ø: 34 mm white h: 8.8 mm gilt 3522 Ingenieur "Officially certified chronometer" black stainless steel on croco strap automatic 1993-1995/96 ø: 34 mm white mixte (SS/18 ct. bezel) on croco strap date water resistant to 12 atm amagnetic to 80,000 A/m cushioned movement magnifying lens over date movement based on JLC cal. 889 date cal. 887 movement based on ETA cal. 2892 A2 base reference 3508 cal. 887 cal. 887/2 water resistant to 12 atm amagnetic to 500,000 A/m h: 8.8 mm gilt water resistant to 12 atm amagnetic to 80,000 A/m cushioned movement magnifying lens over date movement based on JLC cal. 889 base reference 3521 water resistant to 3 atm amagnetic to 40,000 A/m cal. 37580 3540 Ingenieur SL perpetual calendar 1987-1989/90 18 ct. yellow gold on croco strap cal. 37582 1989/90-1992 perpetual white mat ø: 34.5 mm 2nd or 3rd version Da Vinci perpetual module movement based on ETA cal. 2892 A2 base reference 9245 v.1.0 List of IWC Ingenieur models (ordered by reference number) 7 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap cal. 631 stainless steel on leather strap meca-quartz 3733 Ingenieur chronograph water resistant to 3 atm black with gilt subdials 1988-1992/93 mixte (SS/14 ct. YG bezel) on leather strap ø: 30 mm mvmt. based on JLC cal. 630 white chronograph 18 ct. yellow gold on leather strap base reference 3734 date cal. 631 stainless steel on steel bracelet meca-quartz 3734 Ingenieur chronograph black with gilt subdials 1988-1992/93 chronograph water resistant to 3 atm ø: 30 mm mixte (SS/14 ct. YG bezel) on steel bracelet white mvmt. based on JLC cal. 630 date water resistant to 3 atm cal. 633 3805 Ingenieur chronograph alarm black ø: 34 mm white h: 9mm gilt w: 99 g (SS/SS) stainless steel on steel bracelet meca-quartz 1991-1996/97 chronograph mixte (SS/18 ct. YG bezel) on steel bracelet+ date, alarm amagnetic to 4,800 A/m same watch on diamond bracelet (ref. no. unknown) mvmt. based on JLC cal. 630 cal. 633 water resistant to 3 atm black 3815 Ingenieur chronograph alarm meca-quartz stainless steel on leather strap 1991-1996 mixte (SS/18 ct. YG bezel) on leather strap chronograph ø: 34 mm amagnetic to 4,800 A/m h: 9 mm mvmt. based on JLC cal. 630 white gilt date, alarm base reference 3815 cal. 320 water resistant to 6 atm stainless steel on leather strap 4413 Ingenieur Lady SL automatic (cal. 3201) 1986 automatic 1986/87-1989 white ø: 30 mm mixte (SS/14 ct. YG bezel) on leather strap plated rhodium 18 ct. yellow gold on leather strap date amagnetic to 40,000 A/m movment based on F Piguet 951=320, 952= 3201 v.1.0 List of IWC Ingenieur models (ordered by reference number) 8 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap cal. 320 4414 Ingenieur Lady SL automatic stainless steel on steel strap (cal. 3201) 1986 automatic 1986/87-1989 quartz 1981-1985/86 date 4502 quartz mixte (SS/14 ct. YG bezel) on croco strap 18 ct. yellow gold on croco strap stainless steel on croco strap cal. 2249 Ingenieur Lady SL quartz ø: 30 mm plated rhodium stainless steel on croco strap cal. 2249 4501 water resistant to 6 atm white 1981-1985/86 date mixte (SS/14 ct. YG bezel) on croco strap 18 ct. yellow gold on croco strap amagnetic to 40,000 A/m movement based on F Piguet 951=320, 952= 3201 mixte (SS/14 ct. YG bezel) on mixte bracelet date Ingenieur Lady SL quartz mixte (SS/14 ct. YG bezel) on steel bracelet black water resistant to 5 or 6 atm plated rhodium ø: 26 mm ? amagnetic to 40,000 A/m (white - roman) mvmt. based on ESA quartz cal. 956111 (gilt) black water resistant to 5 or 6 atm plated rhodium ø: 26 mm ? amagnetic to 40,000 A/m white - roman mvmt. based on ESA quartz cal. 956111 (gilt) black cal. 2249 4503 Ingenieur Lady SL quartz quartz stainless steel on steel bracelet 1980-1987 date mixte (SS/14 ct. YG bezel) on mixte bracelet water resistant to 12 atm plated rhodium ø: 30 mm amagnetic to 40,000 A/m white - roman mvmt. based on ESA quartz cal. 956111 (gilt) plated rhodium 4508 Ingenieur Lady SL quartz "Titanium spanish olive" cal. 2249 quartz water resistant to 6 atm 1983-1984 titanium "spanish olive" on leather or soft strap black ø: 26 mm amagnetic to 40,000 A/m gilt date mvmt. based on ESA quartz cal. 956111 enamelled v.1.0 List of IWC Ingenieur models (ordered by reference number) 9 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap plated rhodium 4509 Ingenieur LadySL quartz "Titanium spanish olive" cal. 2249 quartz water resistant to 12 atm 1983-1984 titanium "spanish olive" on leather or soft strap black ø: 30 mm amagnetic to 40,000 A/m gilt date mvmt. based on ESA quartz cal. 956111 enamelled stainless steel on croco strap cal. 2249 4513 Ingenieur Lady SL quartz quartz 1982-1989 date 18 ct. yellow gold on croco strap cal. 2209 4550 Ingenieur Lady quartz in titanium quartz mixte (SS/14 ct. YG bezel) on croco strap black water resistant to 6 atm plated rhodium ø: 25 mm mixte (Ti/18 ct. YG) on mixte bracelet mvmt. based on ETA quartz ebauche white (gilt) [titanium on leather strap with pushbutton safety clasp] cal. 2209 quartz amagnetic to 40,000 A/m mvmt. based on ESA quartz cal. 956111 (plated rhodium) mixte (Ti/18 ct. YG bezel) on steel bracelet both mixte versions also available with precious stones (diamonds) Ingenieur Lady quartz in yellow gold ø: 30 mm (black) black military 1985-1989 water resistant to 12 atm (steel) water resistant to 6 atm (gold) white - roman titanium on titanium bracelet date 4551 gilt 1986/87-1987/88 [mixte (Ti/18 ct. YG bezel) on leather strap with pushbutton safety clasp] white ø: 25 mm water resistant to 6 atm (Titanium) or 3 atm (Gold models) mvmt. based on ETA quartz ebauche date 18 ct. yellow gold on leather strap with pushbutton safety clasp cal. 2209 stainless steel on ? 4560 Ingenieur Lady quartz quartz ? ? 18 ct. yellow gold on ? date ø: ? mm water resistant to 6 atm v.1.0 List of IWC Ingenieur models (ordered by reference number) 10 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap black military cal. 2209 4561 Ingenieur Lady quartz in titanium quartz titanium on leather strap 1988-1989 date [mixte (Ti/18 ct.YG bezel) on leather strap] (black) water resistant to 6 atm ø: 25 mm mvmt. based on ETA quartz ebauche (plated rhodium) (white) black cal. 9520 5215 Ingenieur SL pocket watch manual winding ø: 50 mm water resistant to 3 atm h: 10 mm amagnetic to 40,000 A/m w: 84 g cushioned movement plated rhodium 1982-1997 stainless steel white white - roman water resistant to 6 atm cal. 2249 6703 Ingenieur Lady SL quartz amagnetic to 40,000 A/m black quartz 1980-1984 18 ct. yellow gold on gold bracelet ø: 30 mm gilt date mvmt. based on ESA quartz cal. 956111 gold version of ref. 4503/4513 water resistant to 5 or 6 atm cal. 2249 6704 Ingenieur Lady SL quartz (black) quartz 1981-1984/85 18 ct. yellow gold on gold bracelet amagnetic to 40,000 A/m ø: 26 mm ? gilt mvmt. based on ESA quartz cal. 956111 date gold version of ref. 4502/4501 water resistant to 6 atm black cal. 2249 6720 Ingenieur Lady SL quartz quartz ca. 1982-1985 18 ct. yellow gold on gold bracelet with diamonds on bezel amagnetic to 40,000 A/m plated rhodium ø: 30 mm gilt mvmt. based on ESA quartz cal. 956111 enamelled 45 diamonds on bezel (0.76 ct.) date v.1.0 List of IWC Ingenieur models (ordered by reference number) 11 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap water resistant to 6 atm cal. 2249 6721 Ingenieur Lady SL quartz quartz 1981/82-1985/86 18 ct. yellow gold gold on gold bracelet with diamonds on bracelet, bezel & dial gold (pavé) ø: 26 mm ? mvmt. based on ESA quartz cal. 956111 date cal. 2249 6724 Ingenieur Lady SL quartz quartz amagnetic to 40,000 A/m water resistant to 6 atm ca. 1982-1985 18 ct. yellow gold on gold bracelet with diamonds on bezel gilt ø: 26 mm amagnetic to 40,000 A/m black date mvmt. based on ESA quartz cal. 956111 cal. 2209 6727 Ingenieur Lady quartz in yellow gold water resistant to 3 atm quartz 1985-1987 18 ct. yellow gold on gold bracelet gilt ø: 25 mm mvmt. based on ETA quartz ebauche date black cal. 2249 6730 Ingenieur Lady SL quartz quartz water resistant to 6 atm gilt ca. 1984 18 ct. yellow gold on gold bracelet with diamonds date plated rhodium ø: 30 mm mvmt. based on ESA quartz cal. 956111 white enamelled (tritium & non tritium) cal. 2209 6753 Ingenieur Lady in yellow gold quartz date amagnetic to 40,000 A/m water resistant to 6 atm ca. 1985 18 ct. yellow gold on gold bracelet with diamonds on bezel und bracelet onyx ø: 25 mm amagnetic to 40,000 A/m mvmt. based on ETA quartz ebauche v.1.0 List of IWC Ingenieur models (ordered by reference number) 12 of 19 case picture reference name movement listed dials measurements white ø: 26 mm ? remarks bracelet/strap cal. 618 6757 Ingenieur Lady SL with moonphase 1986/87quartz water resistant to 3 atm 18 ct. yellow gold on gold bracelet 1987/88 mvmt. based on JLC quartz ebauche moonphase water resistant to 10 atm cal. 8531 9033 AD Ingenieur automatic calendar automatic 1963?-1967 18 ct. yellow gold on gold bracelet ø: 36.5 mm amagnetic to 80,000 A/m h: 13 mm optional magnifying lens over date silvered date base reference 666 AD silvered sunray cal. 854 9120 A Ingenieur automatic cal. 854B water resistant to 6 atm ? gilt sunray ø: 37 mm anthracite h: 13 mm 18 ct. yellow gold on gold bracelet amagnetic to 80,000 A/m automatic base reference 866 A=1908 (black) cal. 8541 blue sunray cal. 8541B gilt sunray ø: 37 mm automatic silvered sunray h: 13 mm date (anthracite, black) amagnetic to 80,000 A/m 9120 AD Ingenieur automatic calendar ? 18 ct. yellow gold on gold bracelet water resistant to 6 atm base reference 8666 AD=1808 water resistant to 6 atm amagnetic to 40,000 A/m black 9223 Ingenieur SL automatic cal. 375 ca. 1984? 18 ct. yellow gold on gold bracelet ø: 34 mm ... mvmt. based on ETA cal. 2892 A2 at least some specially made for Sultanate of Oman (crest on dial) v.1.0 List of IWC Ingenieur models (ordered by reference number) 13 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap water resistant to 6 atm cal. 375 9224 Ingenieur SL automatic automatic ca. 1984? 18 ct. yellow gold on gold bracelet with diamonds on bezel (also fitting cuffs links, ring and key fob) date amagnetic to 40,000 A/m black ø: 34 mm ... mvmt. based on ETA cal. 2892 at least some specially made for Sultanate of Oman (crest on dial) black Ingenieur SL automatic 9225 (AKA "Skinny Ingenieur") cal. 375 automatic water resistant to 6 atm gilt 1983-1984 18 ct. yellow gold on gold bracelet date plated rhodium ø: 34 mm amagnetic to 40,000 A/m mvmt. based on ETA cal. 2892 white enamelled (tritium & non-tritium) black Ingenieur SL automatic 9230 (AKA "Skinny Ingenieur") Ingenieur SL automatic 9231 (AKA "Skinny Ingenieur") cal. 375 automatic water resistant to 6 atm gilt 1984-1985 18 ct. yellow gold on gold bracelet date plated rhodium ø: 34 mm mvmt. based on ETA cal. 2892 A2 white enamelled (tritium & non-tritium) cal. 375 automatic amagnetic to 40,000 A/m water resistant to 6 atm ca. 1985? 18 ct. yellow gold on gold bracelet with diamonds on bezel gilt ø: 34 mm amagnetic to 40,000 A/m ... date mvmt. based on ETA cal. 2892 A2 produced in 55 pieces Ingenieur SL automatic 9232 (AKA "Jumbo" or "fat" Ingenieur) cal. 8541ES black ø: 38 x 40 mm gilt h: 14 mm ... w: 285 g (??) amagnetic to 80,000 A/m automatic 1976-1982/83 18 ct. yellow gold on gold bracelet water resistant to 6 atm date cushioned movement v.1.0 List of IWC Ingenieur models (ordered by reference number) 14 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap Ingenieur SL 9236 (AKA "Skinny Ingenieur") cal. 37531 water resistant to 6 (catalogue 12) atm gilt automatic ca. 1985-1989 18 ct. yellow gold on gold bracelet ø: 34 mm amagnetic to 40,000 A/m ... date mvmt. based on ETA cal. 2892 A2 produced in ca. 137 pieces cal. 37590 black ø: 34 mm 9238 Ingenieur 500,000 A/m automatic 1989-1992 18 ct. yellow gold on gold bracelet white h: 9 mm date gilt water resistant to 6 atm amagnetic to 500,000 A/m movement based on ETA cal. 2892 A2 base reference 3508 cal. 887 black 9239 Ingenieur "Officially certified chronometer" cal. 887/2 1993-1995 ø: 34 mm 18 ct. yellow gold on gold bracelet automatic white 1995-2000/01 h: 8.8 mm gilt date water resistant to 6 atm amagnetic to 80,000 A/m cushioned movement magnifying lens over date movement based on JLC cal. 889 base reference 3521 water resistant to 3 atm 9240 Ingenieur SL perpetual calendar cal. 3757 amagnetic to 40,000 a/m 1985-1985/86 18 ct. yellow gold on gold bracelet white mat ø: 34.5 mm perpetual 1st version of Da Vinci perpetual module movement based on ETA cal. 2892 A2 water resistant to 3 atm 9241 Ingenieur SL perpetual calendar amagnetic to 40,000 a/m cal. 3757 1986/87 perpetual 18 ct. yellow gold on gold bracelet with diamonds on bezel white mat ø: 34.5 mm 1st version of Da Vinci perpetual module movement based on ETA cal. 2892 A2 same ref. no. used for Mark XII v.1.0 List of IWC Ingenieur models (ordered by reference number) 15 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap water resistant to 3 atm cal. 37580 9245 Ingenieur SL perpetual calendar 1987-1989 cal. 37582 amagnetic to 40,000 a/m 18 ct. yellow gold on gold bracelet white mat ø: 34.5 mm 1989-1992 2nd or 3rd version of Da Vinci perpetual module movement based on ETA cal. 2892 A2 perpetual produced in 7 pieces cal. 37590 9258 Ingenieur 500,000 A/m automatic black 1990/91-1993 18 ct. yellow gold on gold bracelet with diamonds date ø: 34 mm white h: 9 mm gilt water resistant to 6 atm amagnetic to 500,000 A/m movement based on ETA cal. 2892 A2 54 diamonds (0.64 ct.) base reference 3508 cal. 887 9259 Ingenieur "Officially certified chronometer" cal. 887/2 1993?-2001? gilt ø: 34 mm ? h: 9 mm 18 ct. yellow gold on gold bracelet autoamtic date water resistant to 6 atm amagnetic to 80,000 A/m cushioned movement, magnifying lens over date movement based on JLC cal. 889 base reference 3521 water resistant to 3 atm cal. 37580 9260 Ingenieur SL perpetual calendar 1987-1989 cal. 37582 1989-1990/91 amagnetic to 40,000 a/m 18 ct. yellow gold on gold bracelet with diamonds on bezel and bracelet white mat ø: 34.5 mm perpetual 2nd or 3rd version of Da Vinc perpetual module movement based on ETA cal. 2892 A2 base reference 9245 water resistant to 3 atm cal. 37580 9263 Ingenieur SL perpetual calendar 1988-1989 cal. 37582 1989-1990/91 perpetual 18 ct. yellow gold on gold bracelet with diamonds on bezel amagnetic to 40,000 a/m white mat ø: 34.5 mm 2nd or 3rd version of Da Vinci perpetual module movement based on ETA cal. 2892 A2 base reference 9245 v.1.0 List of IWC Ingenieur models (ordered by reference number) 16 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap water resistant to 10 atm cal. 853 9386 A Ingenieur automatic ø: 36.5 mm 1959-1967 18 ct. yellow gold on gold bracelet silvered automatic h: 13 mm amagnetic to 80,000 A/m (also in the sixties briefly called ref. 993862?) base reference 666 A water resistant to 10 atm cal. 8531 9386 AD (= 993861) Ingenieur automatic calendar ø: 36.5 mm automatic 1959-1967 18 ct. yellow gold on gold bracelet silvered h: 13 mm date amagnetic to 80,000 A/m optional magnifying lens over date in the sixties shortly called ref. 993861 base reference 666 AD produced in 45 pieces cal. 2405 black Ingenieur SL quartz 9503 stainless steel on steel bracelet quartz 1976/77-1979 (AKA "Jumbo quartz") ø: 38 x 40 mm gilt mixte (SS/14 ct. YG) on mixte bracelet date h: 14 mm ? plated rhodium water resistant to 6 atm amagnetic to 40,000 A/m cushioned movement base reference 3003 cal. 633 black 9515 Ingenieur chronograph alarm meca-quartz ø: 34 mm 1991-1996/97 18 ct. yellow gold on gold bracelet white h: 9mm chronograph gilt date, alarm water resistant to 3 atm amagnetic to 4,800 A/m movement based on JLC cal. 630 same watch on diamond bracelet (ref. no. unknown) base reference 3508 water resistant to 3 atm amagnetic to 4,800 A/m cal. 633 black 9517 Ingenieur chronograph alarm meca-quartz 1991-1996/97 chronograph 18 ct. (white ?) gold on gold bracelet with diamonds on bezel ø: 34 mm movement based on JLC cal. 630 h: 9mm same watch on diamond bracelet (ref. no. unknown) white gilt date, alarm base reference 3508 v.1.0 List of IWC Ingenieur models (ordered by reference number) 17 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap cal. 631 water resistant to 3 atm black with gilt subdials 9533 Ingenieur chronograph chronograph 1988-1992/93 18 ct. yellow gold on gold strap ø: 30 mm mvmt. based on JLC cal. 630 white date base reference 3734 cal. 2250 9652 Ingenieur in yellow gold quartz water resistant to 6 atm around 1985 18 ct. yellow gold on gold bracelet with diamonds on bezel und bracelet onyx ø: 34 mm date amagnetic to 40,000 A/m mvmt. based on ETA quartz ebauche produced in 56 pieces cal. 2250 black Ingenieur SL quartz 9701 ø: 38 x 40 mm quartz 1980-1983/84 18 ct. yellow gold on gold bracelet gilt (AKA "Jumbo quartz") h: 8 mm ? date white - roman amagnetic to 40,000 A/m water resistant to 6 atm mvmt. based on ETA quartz ebauche base reference 3303 amagnetic to 40,000 A/m cal. 2250 black Ingenieur SL quartz 9703 water resistant to 6 atm quartz ca. 1982-1984 18 ct. yellow gold on gold bracelet gilt ø: 34 mm (AKA "Skinny quartz") mvmt. based on ETA quartz ebauche date white - roman base reference 3305 produced in 4 pieces cal. 2250 black Ingenieur SL quartz 9720 quartz (AKA "Jumbo quartz") date ca. 1983 18 ct. yellow gold on gold bracelet with diamonds on bracelets amagnetic to 40,000 A/m ø: 38 x 40 mm water resistant to 6 atm gilt h: 8 mm ? white - roman mvmt. based on ETA quartz ebauche base ref. 3303 v.1.0 List of IWC Ingenieur models (ordered by reference number) 18 of 19 case picture reference name movement listed dials measurements remarks bracelet/strap water resistant to 6 atm Ingenieur SL quartz cal. 2250 9721 1981/82-1987 (AKA "Skinny quartz") quartz 18 ct. yellow gold gold on gold bracelet with diamonds on bracelet, bezel & dial amagnetic to 40,000 A/m gold (pavé) ø: 34 mm mvmt. based on ETA quartz ebauche base reference 3305 black water resistant to 6 atm Ingenieur SL quartz cal. 2250 (AKA "Skinny quartz") quartz 9724 ca. 1982-1985? 18 ct. yellow gold gold on gold bracelet with diamonds on bezel gilt ø: 34 mm amagnetic to 40,000 A/m plated rhodium mvmt. based on ETA quartz ebauche white enamelled gilt cal. 2210 9727 Ingenieur in yellow gold water resistant up to 3 atm white quartz 1984/85-1987 18 ct. yellow gold on gold bracelet ø: 32 mm amagnetic to 20,000 A/m (black) date mvmt. based on ETA quartz ebauche (rhodium plated) gilt amagnetic to 40,000 A/m cal. 2250 Ingenieur SL quartz 9730 (white) quartz 1980?-1985 18 ct. yellow gold on gold bracelet (AKA "Skinny quartz") water resistant to 6 atm ø: 34 mm (black) mvmt. based on ETA quartz ebauche (rhodium plated) base reference 3305 date cal. 2210 9737 Ingenieur in yellow gold quartz date water resistant up to 3 atm ? 18 ct. yellow gold on gold bracelet with diamonds ? ø: 32 mm amagnetic to 20,000 A/m mvmt. based on ETA quartz ebauche v.1.0 List of IWC Ingenieur models (ordered by reference number) 19 of 19 Unidentified or dubious models picture case reference name movement listed dials measurements remarks ø: ? an Ingenieur with cal. 605/606 is only depicted in Jürgen King, Wristwatch movements from IWC, part VII, Watch, 2/02, p.55. Except for the dial inscription, it looks very similar to the contemporanean ref. 9730 May have never been actually issued bracelet/strap (click on thumbnail for enlarged version) cal. 605 9xxx? Ingenieur in yellow gold gilt cal. 606x (white) ca. 1982/83 18 ct. yellow gold on gold bracelet quartz (black) date (rhodium plated)