Gontard et Cie

GONTARD - RARE & UNUSUAL 15-DAY GOING GOLD POCKET WATCH Gontard et Cie à Paris, Swiss, No. 1038. Made circa 1860. Fine, rare and unusual, 15-day going, 18K gold pocket watch with power-reserve indication. Three-body, 'forme quatre baguettes', polished bezel, engine-turned back 'grains d'orge', coin-edge band. White enamel with radial Roman numerals, outer minute track, subsidiary seconds. Blued-steel Breguet hands. 19''', gilded brass, 8 jewels, special calibre with large mainspring barrel covering the entire back of the watch, winding indication sector calibrated for 15 days on the barrel cover driven directly from the pinion mounted on the winding arbor, cylinder escapement, monometallic three-arm balance, flat balance spring, index regulator protruding from the dial plate. Notes Dial and barrel cover signed, case numbered. DIAM. 47 mm. The 15-day going watch with power-reserve indication was patented by Gontard in 1846.