Description Features: <br />1. Transparent dial with skeleton design <br />2. Stainless steel watch case <br />3. High quality synthetic leather band <br /> <br />Specification: Case Diameter: 1.61 Inch (=41mm) <br />Thickness: 0.39 Inch (=10mm) <br />and Width: 0.87 Inch (=22mm) <br />Size: Fit wrist from 6.8-8.5 inch (=17.4-21.7cm) <br />ial Window Material: Glass Case <br />Material: Stainless steel <br />Band Material: High grade synthetic leather Water resistant: 3 ATM， not suitable for swimming or shower. <br />Movement: Hand-winding Mechanical. Full spring once a day to ensure the travel time required to the next  usage