Cartier Men's W5200003 Tank Solo Stainless Steel Watch with Black Leather Band Rectangular watch featuring logoed dial with bold Roman numeral indices 27 mm stainless steel case with antireflective-sapphire dial window Quartz movement with analog display Leather calfskin band with fold-over-clasp closure Water resistant to 30 m (99 ft): In general, withstands splashes or brief immersion in water, but not suitable for swimming.