The Swiss Army Chronopro is a luxurious watch featuring Swiss-Made craftsmanship and a high-performance design Automatic chronograph features a precision Swiss self-winding chronograph movement with 42 hour power reserve Luminous hands for nighttime visibility Sub-second hand at the 6 o'clock position Stainless Steel Case in brushed finish with polished accents including bezel and crown Anti-reflective Sapphire Crystal is Virtually Scratch-Proof Screw-In See-Through Caseback allow you to view the mechanical movement protected by shatter-resistant mineral crystal Screw down crown Screw down pushers Date between the 4 and 5 o'clock Chronograph records up to 12 hours in 1/5 seconds with 30 minute and 12 hour registers Tachymeter timer to measure distance over time Double locking push-button deployment clasp 100 Meters (330 feet) Water Resistant Approximate diameter of case not including setting crown is 42 mm