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| Index No. A7052 | Gold English Pocket Chronometer |
| An unusual early 19th Century English pocket chronometer in a gold consular case. Full plate gilt keywind fusee movement, Harrison's maintaining power. Engraved masked cock with diamond endstone, polished steel regulator, gold sector index. Compensation balance with blue steel arms and quarter timing nuts. Blue steel spiral hairspring. Unusual form of Earnshaw's spring detent escapement, the short spring detent located in a slot in the top plate, the escape wheel below, pivots with endstones. Numbered white enamel dial marked chronometer, subsidiary seconds, Roman numerals, blue steel seconds hand, gold hands. Plain 18 carat red gold consular case the front bezel and back lid sharing the same hinge. Oval cartouche on the back lid with small engraved monogram, chased and engraved pendant and bow. Maker's mark "DW" and number corresponding to that on the movement. | ||
| Signed | James Ritchie & Son Makers to the Queen - 25 Leith St Edinburgh - Royal Exchange London | |
| Hallmarked London | 1804 | |
| Diameter | 53 mm | ||
| Depth | 13.5 mm |
| An unusual layout for an Earnshaw spring detent chronometer. It appears to have been "modernised" in the late 19th Century by James Ritchie who has removed the original makers name from the plate and made a new dial. He also changed the pendant , engraved the back cover and removed a hack feature. He may have taken this watch in exchange for a new one and decided to sell it again under his own name. It is possible that it was made by Robert Pennington. |
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