Cartier Tank MC Watch. 34.3mm x 44mm steel case, 11.7mm thick, sapphire back, faceted crown set with a faceted synthetic spinel, steel bezel, sapphire crystal, silver dial, caliber 1904-CH MC automatic movement with sword-shaped hands in blued steel, calendar aperture at 6 o'clock, black alligator skin strap, folding buckle. Wat