Dial and movement are excellent. Case is in very good condition with slight some nickel silver showing through on the back. These timepieces were used by the navigator and pilot as the airplane's master time source during World War II and thereafter. Navigational Stop Watch, Model 23 U. S. Navy Bureau of Aeronautics. These were issued to the Army Air Corps, the Navy's Bureau of Aeronautics, and the Air Council of the United Kingdom.
Case is excellent with very light minor surface scratches from actual use.
Movement and dial are near mint. Refer to Whitney's Military Timepieces , pgs. A high grade piece and excellent example of an U.S. made navigational stopwatch. The movement is an attractive pink Valjoux one of 18 jewels and runs well. Movement and dial are excellent with no hairlines visible on the dial.