MKS 800 Navigation Chronograph Details:Watchcase: Made of stainless steel 316 L, Turning ring with black engraver Dimensions: 44mm in diameter, 11mm thick (without crown/ buttons) Underside: Stainless steel with engraver and etched mark. Face: blackDigits: Applied staffs with fluorescent points Hands: Hour/minute/seconde-stop hand with fluorescent points. Second and second-stop hand in different color. Glass: Crystal glass, flat. Crown: Fluted with emblem and side protection. Strap: black leather strap with rivets, stainless steel fastener and engraved logo. Mechanism: K021.062 electromechanical quartz movement Functions: Hours, minutes, seconds, 1/20 second stopwatch, date, telemeter, navigation computer Waterresistant: 5 ATM Extra: Turning ring with Navigation Computer, 1/20 second stop with retrograde function