Patek Philippe Genève, Movement No. 1169809, Case No. 2710158, Ref. 3520, Cal. 175, 32 mm, circa 1972

A gentleman's very fine Geneva wristwatch "Calatrava"
Case: 18k white gold, screw back, bezel with "Clous de Paris" decoration. Dial: white, radial Roman numerals, black baton hands. Movm.: bridge movement, rhodium-plated, "fausses côtes" decoration, 8 adj., 18 jewels, Geneva quality hallmark, Gyromax balance, shock protection for balance and escape wheel.