The Art of American Horology Part ll,...

Roosevelt Hotel, Madison Avenue @ 45th Street, Dec 04, 2002

LOT 691

Sangamo Special Marked 60-HoursIllinois Watch Co., Springfield, No. 4758311, Model 7, "Sangamo Special", circa 1926.Fine, white gold-filled, 60-hour 23-jewel Railroad watch.

C. Three-piece, screw back and bezel by "Wadsworth", back with engine-turned pattern. D. White enamel, double-sunk with bold Arabic numerals, outer minute ring with 5-minute dart markers, subsidiary seconds. Blued steel "Diamond" hands. M. 17 size, nickel, 3/4 split plate with mocked bridges, "fausses-côtes" decoration, 23 jewels, the top ones in screwed raised gold settings, gold wheel train, straight line lever escapement, cut-bimetallic compensation balance with gold screws, adjusted to tempeatures and 6 positions, blued steel Breguet balance spring, Reed's patented whiplash micrometric regulator, motor barrel, top pallet jewel gold-set, lever-set.Signed on dial and movement, case also signed "Sangamo Special".Diam. 51 mm.