100% authentic tag heuer formula 1 watch Pre owned watch Great working condition Comes with box and book (no card ) Size 44 mm Thickness 15 mm Lugs Distance 21.5 mm Water resistance 200 m Case Steel Fine-Brushed/Polished Bezel Fixed Bezel Steel Crown Screw-down Steel Caseback Plain - Steel Caliber Calibre 16 Automatic Movement Automatic Power reserve (hours) 42 Balance Frequency 28'800 (4 Hz) Functions Hours, Minutes, Chronograph : 1/4 second, 30 minutes counter, 12 hours counter, Date