Robert Gibson, London, Movement No. 16, 56 mm, 182 g, circa 1819
A high-quality pocket chronometer with spring detent escapement according to Thomas Earnshaw Case: silver, "consular" case, polished, case maker's punch mark "ATO" (Albert Thomas Oliver). Dial: regulator dial, enamel, eccentric chapter ring with radial Roman numerals, auxiliary seconds, gold spade hands. Movm.: full plate movement, keywind, frosted, gilt, signed, chain/fusee, solid round movement pillars, three-arm bimetallic chronometer balance with 3 screws and 3 trapezoid weights, freesprung blued helical balance spring, balance bridge, large chatoned diamond endstone on balance.
Robert Gibson may be a brother of John Gibson of London, Sweetings Alley, who was famous for his chronometer and duplex movements. The outstanding craftsmanship and the still excellent timekeeping accuracy of movement no. 16 definitely suggest an exceptionally gifted maker. Presumably the owner of the timekeeper at the time was aware of this when he ordered a new case for the movement from Albert Thomas Oliver around 1937; the company was still at 31 Wynyatt Street then. A.T. Oliver was a descendant of Richard Oliver who founded the company in the mid 19th century at 19 Galway Street, St Lukes.
Estimate 8,500 - 10,000 €
This is a lot of a former auction!
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