The Art of American Horology Part ll,...

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

LOT 716

Waltham Brotherhood BallThe Ball Watch Co., Cleveland, "Order of Railroad Conductors", "Official Standard", No. B 0505532 by Waltham, produced circa 1930.Fine, gold-filled, Railroad Brotherhood watch.

C. Three-piece "bassine" by "Keystone" using J. Boss patent, screw bezel, polished, engine-turned back,. D. White enamel, outer mi-nute ring, sunk subsidiary seconds. Blued steel "Spade" hands.M. 16 size, nickel, 3/4 split plate, damascened, 19 jewels, the top ones in screwed raised gold settings, gold center wheel, straight line lever escapement with sapphire pallets, cut-bimetallic compensation balance with gold screws, adjusted, blued steel Breguet balance spring, Ball's patented (Pat. No. 565955) micrometric regulator, le-ver-set. Signed on dial and movement, dial also signed "Trademark O R C", movement also engraved "O R C", "Trademark", "Pat. Nov. 17. 96.". Diam. 51 mm.