The Professional Chronograph runs a Swiss quartz chronograph movement (Ronda 5030 D) in a 43.95mm 316L stainless steel case, 13mm thick and water resistant to 300m. It was developed with pilots and service members who time events across several environments. Double domed anti-reflective sapphire crystal, screw-down crown, brushed or DLC brushed, with a Twilight, Midnight or Polar dial.