Cartier Tank MC watch, featuring a manufacture automatic winding movement, Caliber 1904-CH MC, with chronograph function. The case is made of steel, and it has a faceted steel crown adorned with a faceted synthetic spinel. The dial is grey flinqué, complemented by sword-shaped steel hands and covered by sapphire crystal. It comes with a semi-matte black alligator leather strap and a double adjustable steel folding clasp. The watch features a calendar opening at 6 o'clock and a sapphire case back. The thickness is 11.7 mm, and it is water-resistant up to 3 bar (30 meters/100 feet). Serial number: 3666113751UX Dimensions: 34.3 x 44 mm without crown Dial: Grey flinqué dial Bracelet: Original Cartier leather strap and clasp Hands: Hour and minute hands in blue. Chronograph hand in silver color. Box: Yes Papers: Yes, not stamped