Fran.H.Duchesne, Paris: An early 18th century silver alarm verge oignon pocketwatch in pierced and engraved case, the white enamel chapter ring with Roman numerals on raised cartouches, central silvered alarm disc, the signed frosted gilt fusee movement with engraved and pierced bridgecock, engraved spring barrel for the alarm, square balluster pillars, the alarm ringing on a bell