Movement: High quality Digital movement<br />Alarm function    <br />Date and Time    <br />Stopwatch timing    <br />Luminous display    <br />Long-life battery  <br />Dial diameter: 4.5 cm    <br />Case Thickness: 1.5 cm    <br />Strap width: 2 cm    <br />Full length: 23cm    <br />Water Resistant: 30 meters water resistant for convenience in your daily life;<br />Note ， pls don't press any button under water When you go to swim or dive!