The Art of American Horology & Colle...

New York, Nov 28, 2001

LOT 148

Hamilton Watch Co., U.S.A., "Navigation Master", model 3992B, No. 3C1048, finished on February 2, 1943, sold to the British Navy on February 2, 1943.Fine, base metal keyless centre seconds watch with stop feature,accompanied by original fitted box.

C. three-body by Keystone, screwed bezel and back, reeded edges. D. white enamel, bold Arabic numerals, outer minute ring with five-minute Arabic markers and British Navy arrow with serial No. 1013. Blued steel "Railway Spade" hands. M. 16 size, nickel, 3/4 split plate, damascened, 22 jewels, adjusted to temperature and 6 positions, straight line lever escapement, monometallic balance with gold screws and self compensating "Elinvar Extra" Breguet balance spring, swan neck micrometric regulator,top feature activated by pulling out the winding crown.Signed on the dial and movement. Case engraved: "Navigation Master Watch MFR's Part No. 3992B. Serial No. 1013-1942. Hamilton Watch Co. A.M.6B/60".Diam. 52 mm.