The Wenger Roadster Swiss Sport watch is perfectly suited to the outdoor enthusiast. The Roadster features include a large 43 mm case, Luminous hands and markers, 100m water resistance, sapphire-coated mineral crystal, rotating bezel, and screw down case back. Features: Crystals - The crystal is the clear surface which covers the watch dial. Crowns - Crowns are stainless steel knobs on the sides of the case body used to set the date and time or rotate the internal bezel. Men"s Roadster Sport Watch with Black Dial, Black PVD Bezel, Black Rubber Strap