Tank Cintrée watch

Tank Cintrée skeleton watch, Manufacture mechanical movement with manual winding, 9917 MC. Platinum 950/1000 case, beaded crown set with a sapphire cabochon, blued steel sword-shaped hands. Black alligator leather strap, interchangeable 18K white gold (750/1000) deployant buckle. Case dimensions: 46 x 23 mm. Hours and Minutes. Skeletonized and curved movement following the shape of the case, the barrel and the balance are inclined so they can follow the shape of the movement. Individually numbered movement containing 142 parts including 21 rubies. Movement length: 33.75 mm, movement width: 19.60 mm, movement thickness: 3.84 mm, frequency: 28,800 vibrations per hour, power reserve approx. 60 hours. Mineral crystal, sapphire case back. Case thickness: 9 mm. Not water-resistant.