Revue Thommen 16071.6154 Men's 'Air speed' Black Dial Chronograph Day-Date Two-Tone Swiss Automatic Watch features a stainless steel 43.5mm case, a black dial, and a sapphire crystal. The 22mm stainless steel band is fitted with a fold over with safety release clasp. This wristwatch is powered by ETA-Valjoux Caliber 7750 automatic movement. Thiswatch has a water resistance of up to 330 feet/100 meters, suitable for short periods of recreational swimming.