OHSEN LCD Dual Core Mens Sport Date Day Stopwatch Black Dial Rubber Wrist Watch Sold by AMPM24 Store. Package Includes: 1 x AMPM24 watch "OHSEN" Racing series, attractive combination of sport and technological charm. Advanced manufacturing technology, wear well and wear comfortable. Alarm function, day and date display. Case diameter: 5.1cm (1.85") Case thickness: 1.3cm (0.55") Band length (case included): 27cm (9.8") Color may not appear as exactly as in real life due to variations between the computer monitors and nacked eye color difference. For detail instructions of the watch, please access our website to download. The website address will show on the manual in your package. If any questions, please don't hesitate to contact us.