GOLD RING THERMOMETER BY BREGUET - 1810
Record status
Individual type · partial
Period
1810
Signed Breguet et Fils; Circa 1810; Diameter 24 x 29 mm; Origin French; Condition Excellent; Materials Gold; Carat for Gold 18 K Documented from the WatchMuseum.org collection record and its own photograph of the object; only details stated by that listing are recorded here. Remaining specifications are marked research required rather than estimated.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Historical context
This is a rare and exquisite early 19th Century thermometer created by Breguet, one of the most renowned watchmakers of all time. It is encased in a gold oval ring and features a beautifully designed gilt plate with a bimetallic strip and quadrant gears that are linked to a central pinion. The fine gold dial is signed and engine turned with "Thermometre" markings, and the circular chapter is marked in degrees with "Glace – Tempere – Chaleur – Fievre" at the quarters. The gold oval case has an engine turned middle and is glazed on both sides to reveal the intriguing mechanism. The reeded gold swivel band allows for use as a ring or perhaps a fob. This exceptionally rare piece comes with a certificate from the archives which shows it was sold for 336 Francs in 1810. Breguet has produced very few thermometers, with the ninth sold to Prince Antonio of Spain in 1813. This ring thermometer is illustrated in Breguet - Watchmakers since 1775 by Emanuel Breguet on page 263. Overall, this is an elegant and unique piece from an iconic watchmaker that any collector would be proud to own. It measures 24 x 29 mm in diameter and is signed Breguet et Fils. Signed Breguet et Fils Circa 1810 Diameter 24 x 29 mm Origin French Condition Excellent Materials Gold Carat for Gold 18 K (Description from The Watch Museum (watchmuseum.org); details apply to the illustrated example, not every object of this type.)
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.