A gentleman's wristwatch of 18k gold. Model Calatrava, ref. 3426. Mechanical movement with manual winding, cal. 23–300. White dial with gold hour markers and hands. Black calfskin strap with Patek Philippe C-type buckle of 18k gold. Watch diameter 32 mm. 1960s.
Case back no. 2'643'631.
Accompanied by Patek Philippe box.