Tissot T-Sport PRS 516 Chronograph Mens Watch T91.1.486.31. Stainless steel case and bracelet. Silver dial. Chronograph. Scratch resistant sapphire crystal. Swiss made quartz chronograph movement. Case diameter 40mm. Case thickness 10.9mm. Water resistant at 50 meters (165 feet). Tissot T-Sport PRS 516 Chronograph Mens Watch T91.1.486.31 / T91-1-486-31 / T91/1/486/31 / T91148631