Reference
IWC Grande Complication
Reference 3770 · Platinum
Track IWC 3770
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About this reference
The IWC Grande Complication reference 3770 in platinum was produced between 1990 and approximately 2005. This reference is significant for being the first wristwatch to integrate a perpetual calendar, chronograph, and minute repeater into a single movement, the caliber 79091. Based on a Valjoux 7750 architecture, the movement features a Kurt Klaus-designed calendar module that is synchronized via the crown. The platinum case measures 42.2mm in diameter and houses a solid silver dial with four sub-dials and a moon phase indicator. Production was limited to 50 pieces per year, contributing to its scarcity. On the secondary market, the reference 3770 in platinum typically trades between $80,000 and $120,000 depending on condition and provenance. A notable production detail is the inclusion of a slide on the left case flank to activate the minute repeater, which utilizes two gongs to chime hours, quarters, and minutes.
Auction track record
3 documented sales since 2013. Top hammer $126,000 at Christie's New York in 2013. Median hammer: $105,000. Most recent: $105,000 in 2026.
Ranks #5 of 46 IWC auction lots we track — see all IWC records.
All documented hammer prices
For this reference (and close variants).
| Lot | Year | Hammer | Venue |
|---|---|---|---|
| 3770 · Grande Complication | 2013 | $126,000 | Christie's New York |
| 3770-25 · Grande Complication | 2026 | $105,000 | Phillips Geneva |
| 3770 · Grande Complication | 2022 | $74,800 | Christie's Geneva |
About this reference
IWC's Grande Complication (3770) is a platinum reference in the IWC lineup. Browse all IWC inventory or set a price alert to be notified when a new example lists.