1818
Full-plate pocket chronometer movement, capped. Earnshaw spring detent escapement. "Brockbank|" 3-arm bimetallic balance, free-sprung helical spring. Flat enamel dial (hairline cracks), seconds at VI. Gold hour and minute hands, steel seconds hand. Now fitted in brass canister with screw-on glazed bezel.
Object Details
| ID: | ZAA0392 |
|---|---|
| Collection: | Timekeeping |
| Type: | chronometer movement, pocket |
| Display location: | Not on display |
| Creator: | Earnshaw, Thomas; Lockwood, J W |
| Date made: | ca.1810 |
| Credit: | National Maritime Museum, Greenwich, London, Foulkes Collection |
| Measurements: | Overall: 56 x 56 x 29 mm |