1950's Vacheron & Constantin "Extra-Flat" Vintage Mens Midsize Watch - Platinum Mechanical when calendar moonphase wristwatches stood

when calendar moonphase wristwatches stood at the intersection of horology

slightly over 21mm wide (excluding crown)

Case condition: Presents as just short of perfect mint with the slightest hairlines on the back and the tiniest bit of wear to the inner bezel only visible under magnification

Its canted corner bezel and case and classic Roman numeral dial give it a look that is distinctly "Cartier

1950's Vacheron & Constantin "Extra-Flat" Vintage Mens Midsize Watch - Platinum Mechanical when calendar moonphase wristwatches stoodToday's offering showcases this very rare platinum mens 31mm midsize Vacheron & Constantin with ultra thin caliber 1003 movement. Original "Extra flat" V & C's are very pleasing and collectable in their own right but when does one ever find an all riginal platinum one? Even better, it's just short of mint. This is the first one to ever pass through our halls. We have owned a watch with this exact case style in 18K yellow but have never seen one in