The exclusive H-40 movement delivers 80 hours of power reserve to this clear statement of contemporary craftsmanship. Appealingly modern case and bracelet design is complemented by refined finishing. Features WATCH Reference : H42525551Caliber : H-40Collection : JazzmasterMovement : AutomaticCase size : 42mmThickness (mm) : 11.8Dial color : SilverCase material : Stainless steelCoating : PVD roseCrystal : SapphireLug width : 22mmPower reserve : 80 hourWater Resistance : 5 bar (50m)/73 psi (164ft)Anti Reflection : YesOpen Case Back : Yes BRACELET/STRAP Strap reference : H6004251021Strap type : Calf leatherBuckle type : Folding claspBuckle width : 20mm Movement H-40 With an extended power reserve of up to 80 hours, the H-40 is both beautiful and bold. Almost double than market standard, 80 hours power reserve means you can remove your watch on Friday and it will still be ticking on Monday.