Material: durable hard plastic (watch case)?? stainless steel (back case) and soft rubber (watchband).</br>Can display month?? date?? week?? day?? hour?? minute?? and second. 12-hour 24-hour format system for choice.</br>Support alarm clock?? hourly chime and stopwatch functions.</br></br>Product Description</br></br>Can display month?? date?? week?? day?? hour?? minute?? and second. 12-hour 24-hour format system for choice.</br><br/>http://www.amazon.com/gp/product/B00C9BB7QO