International Watch Co., Schaffhausen "Da Vinci", Case No. 2717862, Ref. 3750, Cal. 7906, 38 mm, circa 1988

A gentleman's rare, automatic wristwatch with chronograph, perpetual calendar and moon phase
Case: 18k gold, push back with engraving, flexible lugs, IWC buckle. Dial: black, applied indexes, auxiliary seconds, 30 min. counter, 12h counter, indications of day, date, month and year, moon phase, luminous baton hands. Movm.: rotorwind movement, gilt, "fausses côtes" decoration, 5 adj., 36 jewels, polished chronograph steel parts, Glucydur balance, shock protection for balance.