Tank Cintrée skeleton watch

Tank Cintrée Skeleton watch, Manufacture mechanical movement with manual winding, calibre 9917 MC. Platinum case, beaded crown set with a sapphire cabochon, blued-steel sword-shaped hands. Black alligator-skin strap, white gold 750/1000 double adjustable folding buckle. Hours and Minutes. Skeletonised 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 consisting of 142 parts, including 21 jewels. Movement length: 33.75 mm, movement width: 19.60 mm, movement thickness: 3.84 mm, frequency: 28,800 vibrations/hour, power reserve approx. 60 hours. Mineral crystal, sapphire case back. Case thickness: 9 mm. Not water-resistant.