IWC Da Vinci Perpetual Calendar IW3750

IWC Da Vinci Perpetual Calendar, Ref. IW3750, automatic, case and pin buckle in 18kt yellow gold, white dial with gold baton indices and four subdials, moon phase and 30-minute chronograph display at 12 o'clock, date miniature at...

...the "3", month and chronograph hour at the "6", day of the week and small seconds at the "9", display window with year indicator between "7" and "8", gold hands and blued seconds hand, renewed original brown leather strap, case no. 2529833, ø 39 mm excluding crown, 94 g, movement ran during testing, accuracy untested, signs of wear