Robert Molyneux, London, Movement No. 546, 59 mm, 185 g, circa 1820/1871
A heavy pocket chronometer with spring detent escapement according to Thomas Earnshaw - withoriginal mahogany box with numbered ivory shield
Case: 18k gold, tiered, polished, gold dome, case maker's punch mark "JM" (John Martin, London). Dial: enamel, off-white, radial Roman hours, auxiliary seconds, gold spade hands. Movm.: full plate movement, keywind, frosted, gilt, signed, chain/fusee, bimetallic Z-chronometer balance with 4 screws and 2 movable trapezoid weights according to Thomas Earnshaw, freesprung blued helical balance spring, chatoned diamond endstone on balance.
Robert Molyneux was a pupil of Thomas Earnshaw and and adopted his master’s methods; when this watch was produced, he had his workshop at 44 Devonshire Square near today’s Liverpool Street Station. Molyneux was initially in a working partnership with his fellow apprentice Charles John Cope at Earnshaw's workshop; when Parry and Lyon went on expedition in 1821, they took amongst other things the chronometer no. 405 by Molyneux & Cope with them on their ships "Hecla" and "Fury". Molyneux later moved to 30 Southampton Row and took his sons Henry and Robert into his business. He developed a chronometer with thermometer and a useful temperature compensation for chronometer balances at the same time as Eiffe. In England the name Molyneux appears around 1572, which was the time of the emigration of the Huguenots from France.
錶殼 非常好, 後來的原版
机蕊 非常好, 走動正常
机蕊 非常好, 走動正常