SEVEN XII Retro Chronograph ST1901 Movement Hand Winding Men Wristwatch Sapphire Crystal Waterproof S002Mechanical Men Watch: SEVEN XII chronograph watch is equipped with the Seagull ST1901 movement, Guns N' Roses dial, the mechanical movement provides a power reserve of 40 hours without batteries. The Seagull ST19 movement is stable and precise. Chronograph Men Watch: 60 seconds chronograph and 30 minutes chronograph function to record your every moment. Exhibition case back, 30m water resistant, but not for swimming and diving, sapphire crystal,