The Art of American Horology Part ll,...

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

LOT 706

Ball's Standard Railroad Watch Co., Cleveland, Ohio, No. 20768 by Hamilton, circa 1897.Fine and rare, yellow gold-filled, keyless, Railroad watch.

C. Four-body, "bassine et filets", triple-hinged by "Keystone" using J. Boss patent, back centered with a dog, vermicelli borders and band. D. Double-sunk white enamel with Arabic numerals, outer minute ring, subsidiary seconds. Blued steel "Spade" hands. M. 18 size, nickel, full plate, damascened in circular patented pattern, 17 jewels, the top ones in screwed settings, adjusted, straight line lever escape-ment, cut bimetallic compensation balance, blued steel Breguet balance-spring, Ball's patnted whiplash-type micrometric regulator, safety pinion, lever-set.Signed on dial and movement.Diam. 55 mm.