VACHERON CONSTANTIN PATRIMONY POWER RESERVE Reference: 47200/1. Serial number: 706596. 18k white gold case. Light grey dial, seconds at 6 o'clock, Roman numeral hour markers (date at 2 o'clock and power reserve at 10 o'clock). Self-winding mechanical movement (calibre 1127), serial number 862384. Leather strap on unsigned steel folding clasp, sapphire crystal. Circa 1990. Diameter: 35 mm. An 18k gold wristwatch automatic movement, by Vacheron Constantin. Circa 1990.