CLERC HYDROSCAPH H1 CHRONOMETER Silver DialStainless Metal, Computerized, Date, C.O.S.C. Qualified Chronometer. forty two-hour Energy Reserve Ref.H1-1.11R.18 Rotating Bezel with Protection ClockLugs Articulating Lugs Dimension: 43.80 mm, Thick: 15.4 mm Sapphire Crystal Blue Alligator Rubber Band with Clerc Deployant Buckle Water resistance: 500 m/1640 feet. New in Field & Papers Please touch me in case you have any questions. Thank you for having a look Be aware: ALL PICTURES ARE OF THE ACTUAL WATCH.Very good references IWJG & NAWCC Member.