Vacheron Constantin Patrimony Grand Taille 40mm Platinum Manual Wind 81180/000p-9539 This clean classic round case design in a 40mm diameter. Domed sapphire anti-reflective crystal, slate grey dial with a very fine texture, hand applied polished 18K white gold index hour markers. The engine of this fine classic timepiece is none other then Vacheron's in-house caliber which beats at 28,800 vph containing 20 jewels, with an approximate power reserve of about 40 hours. 6.79mm thickness, water resistant to 30 meters / 100 feet. This watch is boasts the Geneva Seal.