The Zenith Chronomaster Open watch has an automatic movement inside of a 39.5mm stainless steel case. The El Primero movement is visible via an escapement window on the dial. The white partial skeleton dial showcases a chronograph function with silver, gray, and blue subdials. It is surrounded by a 1/10th chronograph scale and covered by sapphire crystal. The stainless steel bracelet leads to a deployant buckle. Water resistant to 100 meters.