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| Index No. M6903 | English Pocket Chronometer Movement |
| A mid 19th Century English half plate keywind pocket chronometer movement with fusee and chain. Harrison's maintaining power. Engraved cock with diamond endstone. Compensation balance with freesprung blue steel helical hairspring. Earnshaw type spring detent escapement, escape pivots with endstones. Numbered white enamel dial signed "Chronometer", subsidiary seconds, Roman numerals, blue steel hands. | ||
| Signed | James Joyce Whitchurch | |
| Circa | 1840 | |
| Excellent but the balance pivots broken. | |||
| Diameter | 46 mm | ||
| Depth | 7.5 mm | ||
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Antique Pocket Watches - - - Pieces of Time1 - 7 Davies Mews, -- London, W1Y 2LPTelephone + 44 (0) 207 629 2422 --- --- --- Fax + 44 (0) 207 409 1625 E-mail - info@antique-watch.com | ||