Tank Cintrée Skeleton watch, manual-winding mechanical movement 9917 MC. 18kt rose gold case with a cabochon sapphire-set crown. Blued steel sword-shaped hands. Brown alligator leather strap with 18kt rose gold deployant buckle. Case dimensions: 46 x 23mm. Hours and minutes. Skeletonized movement curved to match the case shape. Individual movement number, 142 pieces including 21 rubies. Movement length: 33.75mm, width: 19.60mm, thickness: 3.84mm, frequency: 28,800 vph, power reserve of approximately 60 hours. Mineral glass crystal, sapphire case back. Case thickness: 9mm. Not water-resistant. Features: