Bimetallic Dial Thermometer and Watch, 1820

Made:
1820 in France
maker:
Bréguet et Fils
SMG00049369

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Science Museum Group
© The Board of Trustees of the Science Museum

SMG00049369
Science Museum Group
© The Board of Trustees of the Science Museum

Combined thermometer and watch in engraved silver case. The bimetallic thermometer is made by Breguet et Fils (and Sons) and has concentric Fahrenheit (-30 to +140°) and Reaumer ( -25 to +50°) scales. Watch with fusee and verge escapement; balance spring missing, 1820.

Details

Category:
Heat
Object Number:
1964-441
Materials:
brass (copper, zinc alloy), enamel, glass, gold plated (gilded), iron, silver (metal) and steel (metal)
type:
pocket watch
taxonomy:
  • measuring devices
  • measuring devices
  • timepieces
  • watches
  • measuring devices
  • measuring devices
credit:
Sotheby & Co.