1. Stainless steel watch case and watch band makes the watch more durable. 2. Skeleton dial design reveals your fashionable point of view. 3. 3ATM water resistance suits your daily need. 4. Automatic winding mechanical movement lets you wear the watch anytime. Specification (1 cm=10 mm=0.394 inch)(approx): Diameter: 38mm Thickness: 13mm Length of watch band: 180mm Movement: Mechanical Watch band: Stainless Steel Watch case: Stainless steel Water resistant: 3 ATM, not suitable for swimming, shower. Color: Silver Package includes: mechanical watch x 1 Reminder: 1. Please peel all films off before wearing. 2. Please keep the watch away from magnet to avoid making the watch stop working. 3. Please wind up the watch before every usage. 4. The watch does not include date and day display. PS: Water Resistant 3 ATM or 30 M: Suitability: Suitable for everyday use. Splash/rain resistant. NOT suitable for showering, bathing, swimming, snorkelling, water related work and fishing. Remark: NOT suitable for diving. Mechanical Watch Usage: Please wind the mechanical watch by turning the crown clockwise for 15 to 20 complete revolutions. Over 20 can do harm to the watch mechanic.