OMEGA Constellation. Circa 1960No. 1683005Men's 18k gold (750 ‰) wristwatch for the French market, white dial, applied baton hour markers forming the hours, date window at 3 o'clock, self-winding mechanical movement caliber 561 No. 20390634, crocodile-style leather strap with its signature 18K gold pin buckle. Dial, case and movement signed. Diameter: 34 mmGross weight : 47.2 g (A restoration invoice dated 12 / 02 / 2020 is attached)