Tank Louis Cartier watch, small model W1529856

Case in 18K yellow gold, circular-grained crown in 18K yellow gold set with a sapphire cabochon, mineral crystal, silver grained dial, Roman numerals, sword-shaped blued-steel hands, alligator-skin strap, ardillon buckle in 18K yellow gold, quartz movement Cartier caliber 057, water resistant to 30 meters / 100 feet. Case dimensions: 29.5x22 mm, 6.35 mm thick.