Black ion-plated stainless steel case strap. Black dial. Time and calendar in 22 time zones (30 cities). Three world time alarms. 1/100 second chronograph measures up to 24 hours. 99 minute countdown timer. One-touch interchangeable analog/digital times. Non-reflective mineral glass crystal. Rotating slide rule bezel. Screw-back case. Power saver function. Safety foldover clasp with push button. Water resistant at 100 meters (330 feet). Citizen Black Eagle Skyhawk Mens Watch JR3155-54E / JR3155/54E / JR315554E / JR3155 