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1785
Marine chronometer, 2 day. Earnshaw's spring detent escapement and Earnshaw's compensation balance with Poole's auxiliary oversprung with helical blued steel spring.
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Object Details
| ID: | ZAA0145 |
|---|---|
| Collection: | Timekeeping |
| Type: | Marine chronometer |
| Display location: | Not on display |
| Creator: | Isaac, Henry P |
| Date made: | 1890 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 195 x 190 x 195 mm |
| Parts: | 1785 |