Joshua & Sons Men's JS50SSB Swiss Chronograph Black Silicone Strap Watch Round watch with engraved bezel featuring silver-tone luminescent hands and hour markers Chronograph features include 30-minute timer, date, and 60-second subdials 54.5 mm silver-tone case with mineral dial window Swiss quartz movement with analog display Silicone band with metal inserts and engraved buckle closure Water resistant to 10 meters / 33 feet.