Important Modern and Vintage Timepieces

Hong Kong, Jun 25, 2011

LOT 315

Double-Dialed With Moon Phases and Gravitational Cover Locking Attributed to B. Haas Jne & Cie, Genève - Paris, No. 15025. Made circa 1890. Fine and rare, 18K pink gold hunting-cased, double-dialed, keyless pocket watch with moon phases, double date calendar and special gravitational locking device for the covers.

C. Three-body, bassine et filets, engine-turned with polished borders, the front cover with engraved foliate monogram ?GE?. D. White enamel on the front with radial Roman numerals, outer minute track and Arabic five-minute numerals, subsidiary seconds, large inner moon phase aperture with lunar calendar on the edge. Gold stone-set arrow hands. Annular white enamel rear dial with black Arabic chapter on the border for the dates, inner days of the week, the center exposing the movement. M. 44.7 mm., 18''', nickel-plated, fausses cotes decoration, 18 jewels, counterpoised straight-line lever escapement, cut bimetallic compensation balance, Breguet balance spring, index regulator. Diam. 51 mm.