Stainless steel case with a stainless steel bracelet. Fixed engraved stainless steel bezel. White dial with luminous hands and luminous dots hour markers. Minute markers around the outer rim. Luminescent hands and dial markers. Chronograph – three sub-dials displaying: 12 hours, 30 minutes and 60 seconds. Automatic movement. Scratch resistant sapphire crystal. Case diameter: 40 mm. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: hours/ minutes/ seconds/ chronograph. Additional Info: perpetual cosmograph. Rolex Daytona White Index Dial Oyster Bracelet Mens Watch 116520WSO.