Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : Without documents; Model: Big Bang Price on request Gmtbroker Reference: 301.SM.1770.RX steel, sapphire crystal, screw bezel, automatic movement, chronograph, three indicators on the dial, seconds, minutes, hours, date between four and five, handles and luminescent dial, screw crown and two buttons with protective rubber, transparent caseback, water resistant 100 meters, diameter 44 mm, rubber strap, folding clasp.