MODEL: IW3750 IWC Da Vinci Perpetual Calendar, Automatic movement in 18K yellow gold case 39mm. Original Croco leather strap with 18K yellow gold IWC buckle. This is a highly complicated and historically significant wristwatch, created by the ingenious watchmaker Kurt Klaus and introduced by the brand at Baselworld in 1985. Featuring a perpetual calendar, moon phase, chronograph, and a four-digit year display, the watch was revolutionary for its time. Klaus designed the iconic caliber 79261 by integrating a perpetual calendar module with the Valjoux 7750 automatic chronograph movement. Remarkably, all complications are synchronized and can be adjusted simultaneously through the crown, an innovation that remains a hallmark of IWC's technical ingenuity. The total weight of the watch is 92.2 grams.
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