Vacheron Constantin Excellence Platine Retrograde Day & Date Watch, Limited Edition Of 100

Swiss watchmaker Vacheron Constantin has revealed a limited edition version of its award-winning Patrimony Retrograde Day and Date watch.  Part of Vacheron Constantin's exclusive Excellence Platine series, the new timepiece features a case and sandblasted dial manufactured entirely from platinum 950. 

Presented in a series of 100 pieces, the Excellence Platine Patrimony Contemporaine Retrograde Day and Date watch shares the fundamental technical specifications of its regular production sibling.  Measuring 42.5mm in diameter, the timepiece features a brilliant polish, individually soldered lugs, and a curved sapphire crystal.  The caseback is engraved with the individual number of the watch and has a sapphire window which reveals the workmanship of the manufacture Vacheron Constantin Caliber 2460 R31 R7, a recipient of the coveted Geneva Seal.  This exclusive self-winding caliber, equipped with a guilloche-engraved 22K gold rotor, amasses forty hours of power reserve and has a balance wheel frequency of 28,800 beats per hour.  

The luxurious ensemble is completed by a dark blue alligator strap, and a folding clasp in platinum that bears half the Maltese Cross--famous symbol of the ancient house.  Even the silk employed in the silvery strap threads contains finely spun platinum.  Each of these Vacheron Constantin timepieces is water resistant to 30 meters.