Slim Solar Powered Chronograph with Sapphire Crystal | Although multi-hand chronograph cases tend to be thick, this is a solar powered chronograph with a case kept to a thickness of 9.9 mm to provide an enhanced fit. Uses an inner rotary bezel with a sporty design. Designed for use by racing team staff managing many scheduled events to countdown to their next scheduled event. Uses a scratch-resistant sapphire crystal. Parts of the case and band are finished in gold ion plating to create a rich design.