M.R.C. WATCH CO. WW2 REPLICA U.S. ARMY AIR FORCE TYPE A-17 Pilot Watch Nakata Shoten M.R.M.W. Military Watch TYPE A-17 Vintage Quartz Watch with 12-hour display. Reissue of the U.S. Army Air Force model. 12-hour quartz movement: Swiss made. Accuracy (at room temperature): Average monthly difference of 15 seconds (standard). Watch case: Stainless steel Battery used: Silver oxide battery SR920SW. Battery life: Approximately 2 years. Water resistance: 10 ATM (10 atmospheres) - Daily waterproof level, not the level of a deep-water diver's watch. Windshield: Domed mineral glass Watch body only, no case included. This was a gift, but it doesn't suit me, so I'm selling it. It is working without any problems.