When timing is the key to success, it's important to have a timepiece that you can rely on for precision - and that looks the part. Whether on the wrist of a conductor, a musician or an appreciative listener, the Jazzmaster Maestro Auto Chrono always strikes the perfect tone. Features WATCH Reference : H32766513Caliber : H-21Collection : JazzmasterMovement : AutomaticCase size : 45mmThickness (mm) : 15.35Dial color : WhiteCase material : Stainless steelCrystal : SapphireLug width : 23mmPower reserve : 60 hourWater Resistance : 10 bar (100m)/145 psi (328ft)Anti Reflection : YesOpen Case Back : Yes BRACELET/STRAP Strap reference : H6003271001Strap type : Calf leatherBuckle type : Pin buckleBuckle width : 20mm Movement H-21 The H-21 is a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of models. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.