The Art of American Horology & Colle...

New York, Nov 28, 2001

LOT 165

The Ball Watch Co., Cleveland., "Official RR Standard", No. 488895, by Hamilton, model 999, circa 1905.Fine, gold-filled, keyless Railroad Grade watch with Montgomery dial.

C. three-body, "bassine" by "Philadelphia Watch Case Co.", screwed bezel with engine-turned borders, screwed engine-turned back with floral motive and engine turning, polished band. D. white enamel, bold Arabic numerals, inner 24 hour chapter, outer minute ring with one-minute Arabic markers in black and red, sunk subsidiary seconds. Blued steel "Pointer Spade" hands. M. 18 size, nickel, full plate, damascened, 17 jewels, the top ones in gold settings, adjusted, straight line lever escapement wih sapphire pallets, monometallic balance with gold screws, steel Breguet spring, swan neck micrometric regulator, safety pinion.Signed on the dial and movement. Dial also signed "Official RR Standard". Movement engraved "Trademark Patented Nov.17.96", "Pat.Aug.18'96." Diam. 54.4 mm.