The mighty 46mm Arctic JDD includes a screw-down crown and advanced o-ring system to ensure water resistance up to 30ATM, a necessity for working in cold conditions. Paired with our military grade Stainless Steel Bracelet, it's a timepiece as refined as it is reliable. Tap to shop the watch. #MarathonWatch #BestInTheLongRun #MarathonStrong #ArcticCollection #JDD #WatchBracelet