The Art of American Horology & Colle...

New York, Nov 28, 2001

LOT 10

Waltham Mass., model 1908, "Vanguard" Grade, No. 23170647, circa 1919.Fine, gold-filled, keyless Railroad Grade double zone watch with 30-hour winding indicator, special hairspring and Montgomery dial.

C. three-body, "bassine et filets", back cover engraved with a train approaching train station, with locomotive in the foreground, reeded bezels. D. white enamel, bold Arabic numerals, outer minute ring with one-minute Arabic markers in black and red five-minute markers, subsidiary sunk seconds, up/down indicator at 12 o'clock. Blued steel "Heavy Double Swell Spade" hands, additional red "Spade" hand for a second time zone. M. 16 size, nickel, bridge calibre, damascened, 23 jewels, the top onesn raised gold settings, gold center wheel, adjusted to 6 positions, straight line lever escapement, cut-bimetallic compensation balance with gold screws, blued steel Breguet balance spring with outer and inner terminal curves, Ohlson micrometric regulator.Engraved on ratchet wheel "Lossier Inner Terminal Hair Spring".Signed on the dial and movement.Diam. 51.7 mm.