The see-through case back of the Viewmatic presents the perfect opportunity to see contemporary watchmaking and quality craftsmanship working in harmony. Luckily, the front of this watch is just as captivating as the back. Features WATCH Reference : H32755551Caliber : H-10Collection : JazzmasterMovement : AutomaticCase size : 44mmThickness (mm) : 11.64Dial color : SilverCase material : Stainless steelCrystal : SapphireLug width : 22mmPower reserve : 80 hourWater Resistance : 5 bar (50m)/73 psi (164ft)Anti Reflection : YesOpen Case Back : Yes BRACELET/STRAP Strap reference : H6003271081Strap type : CanvasBuckle type : Folding claspBuckle width : 20mm Movement H-10 A three-hand movement with or without a date function and boasting a superior power reserve of 80 hours, the H-10 appears with intricate contrasting snail and pearled patterns for the American Classic models it drives and streamlined surfaces for the pilots’ watches.