3147 - IWC · DA VINCI PERPETUAL CALENDAR CHRONOGRAPH

IWC · DA VINCI PERPETUAL CALENDAR CHRONOGRAPH Ref. 3750 · ca. 1990 · 18K yellow gold · 39 mm Kurt Klaus made the perpetual calendar suitable for everyday use: All displays can be advanced simultaneously using the crown. A chronograph and a four-digit year display complement the sophisticated design. The gold Da Vinci lends this legendary Schaffhausen engineering masterpiece an unmistakable, softly rounded shape. Case number: 2,430,576 · Movement number: 2,431,308 Case: Round yellow gold case with a stepped bezel, movable hinge lugs, and Plexiglass; the screw-down caseback bears the calligraphic “Da Vinci” engraving. Dial: White dial with gold baton hour markers and luminous dots, German calendar displays, moon phase, and four-digit year window; the blue chronograph hand provides a subtle contrast. Movement: Automatic, IWC calendar chronograph based on the Valjoux 7750 with a perpetual calendar by Kurt Klaus Functions: Two-hand watch with small seconds, chronograph with 30-minute and 12-hour counters, perpetual calendar with date, day of the week, month, four-digit year display, and moon phase; all calendar displays can be synchronized via the crown. Strap: Brown leather strap Clasp: Gold-colored pin buckle, signed IWC, original Box: Yes – IWC service case with white outer box; IWC travel case · Papers: IWC service report, invoice from the IWC Boutique Zurich dated 2017; full service documented · Accessories: Watch winder, untested; instruction manual/booklet Condition: Well-maintained with normal signs of wear and minor indentations on the bezel. Dial in very good condition. Plexiglass is scratched. Leather strap is brittle; clasp shows slight wear.