IWC 3752

Calibre 3752 is an automatic watch movement from IWC produced from the 1980s through the 2000s and is based on the ETA 2892.

History

Beginning in 1950, IWC produced automatic watch movements featuring their patented Pellaton winding system. This series of movements, starting with Cal. 81, was well-respected and produced in large numbers. But like other companies, IWC was unable to invest in a new movement generation in the face of the quartz crisis. So IWC's Pellaton movements ended production around 1975 with the Cal. 854.

IWC then turned to other companies to supply movements. High-end watches were fitted with the refined and thin Jaeger-LeCoultre movement Cal. 889, now known as IWC Cal. 3254. The remainder of IWC's automatic watches used Cal. 375, which was based on the Eterna-designed ETA 2892. As the industry rebounded and ETA introduced the improved ETA 2892-2, IWC followed with their Cal. 3752 family.

When ETA released the ETA 2892A2 in 1998, IWC began adopting it, starting with Cal. 30110. This family replaced the 2892-2 movements within a decade.

Movement Family

• IWC 3752 (1983-) - 11.5 ligne, based on ETA 2892-2
  • Porsche Design SL 3517
• IWC 37521 (1990-)
  • Porsche Design Diver 3500
  • Porsche Design Diver 3504
  • IWC Bundeswehr 3509
  • IWC Portofino 3513 (1980s-1999)
  • IWC Portofino 3514 (1990-1996)
  • Porsche Design Diver 3524
  • IWC Bundeswehr 3529
  • IWC Portofino Moonphase 3550
  • IWC Portofino 9251 (1989-2002)
  • IWC Portofino 9261 (-1988)
• IWC 37522 - Lower hands
  • IWC Pilot's Watch 3242 Saab, Latuad, Fontan (1997)
  • Porsche Design Diver 3502
  • Porsche Design Diver 3503
  • Porsche Design Diver 3523
• IWC 37523 - Antimagnetic
  • Porsche Design Compass 3511
• IWC 37524 - Lower hands
  • IWC Pilot's Watch Mark XV, Ref. 3253 (1999)
  • Porsche Design 3520
  • IWC Da Vinci SL 3528 (1998-2002)
  • IWC GST Aquatimer 3536 (1998-2003)
  • IWC Da Vinci SL 9268 (1998-2002)
• 37526 - Second timezone
  • IWC Pilot's Watch UTC, Ref. 3251 (1999-2010)
• 3753
  • IWC Ingenieur SL, Ref. 3506 (1985-1989)
  • IWC Ingenieur SL, Ref. 3515 (1983-1985)
  • IWC Ingenieur SL, Ref. 3516 (1985-1989)
  • IWC Ingenieur SL Automatic 9223
  • IWC Ingenieur SL, Ref. 9236 (1987-1989)
• 37541
  • Porsche Design Compass 3551
• 3755AM
  • IWC Bundeswehr 3519
• 3757 - perpetual calendar module
  • IWC Ingenieur 9240 (1985-1987)
  • IWC Ingenieur 9241 (1985-1987)
• 37582 - perpetual calendar module
  • IWC Ingenieur 3540 (1987-1992)
  • IWC Portofino 3541 (1989-1995)
  • IWC Ingenieur 9245 (1987-1992)
  • IWC Ingenieur 9260 (1987-1992)
  • IWC Ingenieur 9263 (1987-1992)
  • IWC Portofino 9271 (1990-1995)
• 37590
  • Ingenieur 500,000 A/m, Ref. 3508 (1989-1992)
  • Ingenieur 500,000 A/m, Ref. 3518 (1989-1992)
  • Ingenieur 500,000 A/m, Ref. 9238 (1989-1992)
  • Ingenieur 500,000 A/m, Ref. 9258 (1991-1993)

Description: Automatic movement Functions: Hours, minutes, central seconds Quickset date Data: 12.5 ligne (28.0 mm) or 11.5 ligne (25.6 mm), 3.6 mm thick 21 jewels (plus 9 ruby ball bearings on Cal. 375) 28,800 A/h Power reserve 42 hours Production period: Production: 1985-2000 Predecessor: IWC 375 Successor: IWC 30110