====== 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 [[IWC 81|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 [[IWC 854|Cal. 854]].

IWC then turned to other companies to supply movements. High-end watches were fitted with the refined and thin [[Jaeger-LeCoultre]] movement [[JLC 889|Cal. 889]], now known as [[IWC 3254|IWC Cal. 3254]]. The remainder of IWC's automatic watches used [[IWC 375|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 [[IWC 30110|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|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|IWC Pilot's Watch UTC, Ref. 3251]] (1999-2010)
  * 3753
    * [[IWC Ingenieur 3506|IWC Ingenieur SL, Ref. 3506]] (1985-1989)
    * [[IWC Ingenieur 3515|IWC Ingenieur SL, Ref. 3515]] (1983-1985)
    * [[IWC Ingenieur 3516|IWC Ingenieur SL, Ref. 3516]] (1985-1989)
    * [[IWC Ingenieur SL Automatic 9223]]
    * [[IWC Ingenieur 9236|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
    * [[IWC Ingenieur 3508|Ingenieur 500,000 A/m, Ref. 3508]] (1989-1992)
    * [[IWC Ingenieur 3518|Ingenieur 500,000 A/m, Ref. 3518]] (1989-1992)
    * [[IWC Ingenieur 9238|Ingenieur 500,000 A/m, Ref. 9238]] (1989-1992)
    * [[IWC Ingenieur 9258|Ingenieur 500,000 A/m, Ref. 9258]] (1991-1993)


<WRAP ud ud_mov>

**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]]
</WRAP>

{{tag>Movements Automatic_movements IWC_calibres}}