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        Marine chronometer, 2-day. Loseby mercurial balance oversprung with helical blued steel spring. Earnshaw spring detent escapement.
              
      
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Object Details
| ID: | ZAA0136 | 
|---|---|
| Collection: | Timekeeping | 
| Type: | Marine chronometer | 
| Display location: | Not on display | 
| Creator: | Loseby | 
| Date made: | 1848-1849; 1848-49 | 
| Credit: | National Maritime Museum, Greenwich, London | 
| Measurements: | Overall: 175 x 175 x 170 mm |