Important Collectors’ Wristwatches, P...

Hong Kong, Apr 23, 2006

LOT 150

?Independent Dead-Beat Seconds? P. Polti à Tours, No. 9272. Made circa 1860. Fine and rare, 18K gold, quarter-repeating, two-train, hunting-cased pocket watch with independent deadbeat center seconds, early keyless winding without coasting and an 18K gold marine-link chain.

C. Four-body, ?bassine et filet?, polished, the front cover engraved with a monogram, slide at 11 o?clock for the center seconds start/stop. Hinged gold cuvette engraved with the technical details. D. White enamel with radial Roman numerals, outer minute/seconds track and Arabic five minute/seconds numerals. Gold ?Spade? hour and minute hands, blued steel center seconds hand. M. 43 mm, 19???, frosted gilt, two-train, tandem winding, 49 jewels, counterpoised straight line lever escapement, cut bimetallic compensation balance with gold temperature and meantime adjustment screws, blued steel Breguet balance spring, index regulator, repeating on gongs activated by a slide on the band. Cuvette signed. Diam. 52 mm.