Important Collectors Wristwatches, Po...

Geneva, Nov 14, 2009

LOT 295

Split-Seconds Chronograph with Guillaume Balance Eberhard & Co., Chaux-de-Fonds, case No. 43361. Made circa 1905. Fine and rare, silver, keyless pocket watch with split-seconds chronograph, instantaneous 30-minute register and Guillaume balance.

C. Four-body, bassine, polished, button at 11 for the split-seconds. Hinged silver cuvette. D. White enamel with Breguet numerals, outer minutes and fifths of a second divisions, Arabic five-second numerals, subsidiary dials for the seconds and the 30-minute register. Blued steel spade hands. M. 19???, rhodium-plated, fausses cotes decoration, 21 jewels, straight-line lever escapement, anibalbrass Guillaume balance, blued steel Breguet balance spring, index regulator. Dial and cuvette signed. Diam. 53 mm.