Case diameter: 4.6cm (1.8 inch) approx. Case thickness: 1.5cm approx (0. 6inch), cover included. Case Material: alloy,Chain Length: 34cm approx. (hook included). Setting time: pull the crown away from the base of the watch and turn the crown clockwise until reaching the exact time, then press the crown back to its original position Easy to open: Press the crown at the top of watch, the front plate will open.