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A very fine and historically important open face pocket watch with early lever escapement from the Estate of the 3rd Viscount Churchill and numbered 1075

Оценочная стоимость
50 000 — 70 000 GBP
Описание
Josiah Emery, Charing Cross, London
Date: London Hallmark for 1790-91
Movement: Gilt full plate, screwed chaton jewels to the centre wheel, fusee with Harrisons maintaining power, very fine polished steel escape wheel, sapphire set pallets, gold safety dart, two level fork acting on two independently set clear sapphires set into balance staff, Arnold's patent 'double S' bi-metallic compensation balance (standard for Emery's lever watches, presumably by arrangement with Arnold), with two compensation adjusting screws and two timing adjustment screws, free sprung blued steel helical balance spring with independently adjustable stud via gilt cock and micro-screw on the plate, long balance staff going through an extremely rare, twin level, finely engraved balance bridge with provisions for anti-friction wheels acting on the top part of the balance staff, screwed chaton- mounted diamond end stone for balance
Dial: White enamel regulator type, black Roman numerals, black outer minute track, subsidiary seconds at 6, blued steel cathedral hands
Case: Engine turned large hinged, radiating engraving to back with leaf motifs to band, inner cap numbered 1075
Signed: Dial, inner cap & movement, case stamped VW for Valentine Walker
Size: 61mm
Accompaniments: Three seals
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