518/819
Pocket chronometer in a silver open face case. Full-plate movement with Arnold's spring-detent escapement and 'Z' balance. Gold helical spring. Flat enamel dial, roman hour numerals, arabic minutes, subsidiary seconds at VI, steel hands. Cased with London assay marks for 1796; case-maker TH. Inner dome additionally marked 518.
Object Details
| ID: | ZAA0500 |
|---|---|
| Collection: | Timekeeping |
| Type: | Pocket chronometer |
| Display location: | Display - ROG |
| Creator: | John Arnold & Son |
| Date made: | 1796 |
| Credit: | National Maritime Museum, Greenwich, London, Foulkes Collection |
| Measurements: | Overall: 79 x 52 x 22 mm |