With a sophisticated design, the Jazzmaster Auto is a contemporary timepiece to suit your day from business time to night-out. Powered by an automatic movement that features a hairspring made from the new anti-magnetic alloy NivachronTM, this 40mm watch keeps precise time all week long. CASE Caliber : H-10Collection : JazzmasterMovement : AutomaticCase size : 40mmThickness (mm) : 11.05Dial color : BlueCase material : Stainless steelCrystal : SapphireLug width : 20mmPower reserve : 80 hourWater Resistance : 5 bar (50m)/73 psi (164ft)Anti Reflection : YesOpen Case Back : YesStrap type : Calf leatherBuckle type : Pin buckleBuckle width : 18mm MOVEMENT 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. REF: H32475640