J.E. Dufour & Co. E. Wirth Succ 18kt Gold Open-face Watch, Geneva, no. 15095, arabic numeral dial with sunk seconds, and pierced gold hands, cuvette engraved in part "No. 15095 Chronometre Regle avcc bulletin de Observatoire de Geneve," stem-wind, stem-set Swiss bar movement with cotes de Geneve decoration, bimetallic balance with Breguet hairspring, and wolf's tooth winding, two-tone link chain, dia. 49.5 mm.