Stainless steel case with a stainless steel bracelet. Fixed black ion-plated bezel with tachymeter markings. Black matte dial with luminous silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at 4 o'clock position. Chronograph - two sub-dials displaying: 60 second and 60 minute. Date sub-dial. Quartz movement. Scratch resistant mineral crystal with sapphire coating. Pull / push crown. Screw down case back. Case diameter: 48 mm. Case thickness: 13.5 mm. Round case shape. Band width: 24 mm. Band length: 8.5 inches. Fold-over clasp with double push button release. Water resistant at 10 atm/100 meters/330 feet. Functions: hour, minute, second. Additional Info: tachymeter on the bezel. Casual watch style. Watch label: Chrono Swiss. Akribos XXIV Black Matte Mens Watch AK649SSB.