Black dial men’s watch with index hour markers. Stainless steel bezel with a tachymetric scale engraved. Chronograph feature with large central chronograph second hand, 30 minute counter sub-dial at 3 o’clock, 12 hour counter sub-dial at 9 o’clock, and small seconds sub-dial at 6 o’clock. Powered by Rolex caliber 4130 self-winding automatic COSC superlative chronometer-certified movement which boasts a 72-hour power reserve. 28,800 vph and 44 jewels. Polished and brushed 904L Oystersteel stainless steel case and oyster bracelet. Scratch-resistant sapphire crystal protects the dial, 40mm case and 7-inch adjustable bracelet. Screw down crown. 100 Meters / 330 Feet Waterproof. Functions: hours, minutes, seconds, chronograph. Sport Style. Swiss Made.