IWC 89760

Cal. 89760 is a high-end manufacture flyback automatic chronograph with GMT hand produced by IWC since 2016.

Details

IWC had long used a family of automatic chronograph movements based on the Valjoux 7750. These were not only used in basic chronograph watches but complicated pieces, including grande complication and tourbillon watches. Two important complications on that base were the perpetual calendar and rattrapante modules that helped re-establish IWC as a maker of advanced watch movements. IWC had never had a flyback chronograph, however, and many buyers looked down at the pedestrian base on which these complications were developed. In 2007, IWC introduced a new Da Vinci Chronograph, Ref. 3764 with an all-new in-house movement developed by Kurt Klaus. The new Cal. 89360 was an advanced design with a flyback chronograph, efficient Pellaton winding, and power reserve of 68 hours, even while operating at 28,800 A/h.

In 2016, IWC launched a variation on the chronograph movement with a separately adjustable GMT hand, Cal. 89630.

Applications

• IWC Pilot's Watch Timezoner Chronograph 3950 (2016-present)

Description: Automatic chronograph flyback GMT movement Bi-directional winding (Pellaton winding system) Functions: Hours, minutes central Flyback chronograph seconds Hacking seconds Independently-adjustable GMT hour hand Date window at 3:00 Small seconds (hacking) at 6:00 Chronograph hours and chronograph minutes at 12:00 Data: Ø 30 mm Height 8.4 mm 39 jewels 323 components 28,800 A/h Power reserve 68 hours Production period: 2016-current

Weblinks

• Calibre Family 89000, iwc.com