Aluminium case with a aluminium bracelet. Fixed aluminium bezel. Black dial with luminous hands and index hour markers. Minute markers. Tachymeter around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 second, 60 minute and 1/10th of a second. Quartz movement. Scratch resistant mineral crystal. Pull / push crown. Solid case back. Case diameter: 45 mm. Case thickness: 12 mm. Round case shape. Fold over clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, date, hour, minute, second. Sport watch style. Swatch Energy Chronograph Black Dial Aluminium Mens Watch YYS4000AG.