Bulova A17 A Really nice all original Bulova A-17A. 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 -59-10021, Order No. DA-36 -038 -ORD.20792-M, Stock No.6645-557-5596 and U.S. Property. Case measures 32mm x 39.5mm and comes with brand new replacement military canvas strap. It would be hard to find a nicer all original example.