Really nice all original Bulova A17A. Movement is a Caliber 10BNCH hack set, 17 jewels just serviced and running perfect. Ordinance Info: Watch Navig. Type A-17A, Spec. Mil-W-6433A, Mfr. Bulova Part No. 10BNCH, Mfr. Bulova Serial No AF-59-.14105 Order No. DA-36-038-ORD.20792M Stock stock number 6645-526-5063 and U.S. Property. Case measures 32mm x 39.5mm and comes with original black nylon strap. It would be hard to find a nicer all original example.