Vacheron Constantin, Genève AN EXCEPTIONALLY FINE AND RARE?PLATINUM OPEN-FACED TRIPLE CALENDAR?KEYLESS LEVER WATCH WITH MOON PHASES AND POWER RESERVE 1929, MOVEMENT NO. 412792, CASE NO. 256481
Vacheron Constantin, Genève AN EXCEPTIONALLY FINE AND RARE?PLATINUM OPEN-FACED TRIPLE CALENDAR?KEYLESS LEVER WATCH WITH MOON PHASES AND POWER RESERVE 1929, MOVEMENT NO. 412792, CASE NO. 256481