Pocket Watch Mechanism by Grandjean Pere et Fils, 1860-1875

Swiss made Duplex, by Grandjean Pere et Fils, with fusee

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Swiss made Duplex, by Grandjean Pere et Fils, with fusee
Science Museum Group
© The Board of Trustees of the Science Museum

Swiss made Duplex, by Grandjean Pere et Fils, with fusee, probably made for Spanish market to copy English work, 1860-1875

Details

Category:
Time Measurement
Object Number:
1920-550
Materials:
brass (copper, zinc alloy) and metal (unknown)
Measurements:
overall: 10 mm 51 mm, .06kg
overall (laid flat): 10 mm x 46 mm x 51 mm,
type:
movement - clockwork and duplex watch
credit:
On loan from Bruno Roberts