CLERC HYDROSCAPH H1 CHRONOMETERBlue Dial Metal Diamond-Like Carbon (DLC), Computerized, Date, C.O.S.C. Qualified Chronometer. forty two-hour Energy Reserve Ref.H1-4B.11.3 Rotating Bezel with Protection Clock Lugs Articulating Lugs Measurement: 43.80mm, Thick: 15.4mm Sapphire Crystal Blue Alligator Rubber Band with Clerc Deployant Buckle Water resistance: 500 m/1640 toes. New in Field & Papers Please touch me you probably have any questions. Thank you for having a look Notice: ALL PICTURES ARE OF THE ACTUAL WATCH. Very good references IWJG & NAWCC Member.