History
Century
- XV
- XVI
- XVII
-
XVIII
- Abraham Louis Perrelet
- Abraham-Louis Breguet
- Antide Janvier
- Edward John Dent
- Ferdinand Berthoud
- Frédéric Japy
- Frédéric Louis Favre-Bulle
- Henri Louis Jaquet-Droz
- J. Louis Benjamin Audemars
- Jacques Frédéric Houriet
- James Cox
- Jean André Lepaute
- Jean Antoine Lépine
- Jean François Bautte
- Jean Frédéric Leschot
- Jean Moïse Pouzait
- Jean-Baptiste Schwilgué
- John Arnold
- John Ellicot
- Joseph-Thaddeus Winnerl
- Josiah Emery
- Louis Antoine Breguet
- Louis Moinet
- Louis-Frédéric Perrelet
- Pierre Augustin Caron dit Beaumarchais
- Pierre Frédéric Ingold
- Pierre Jaquet-Droz
- Pierre Le Roy
- Pierre-Louis Berthoud
- Robert Robin
- Thomas Earnshaw
- Thomas Mudge
- Urban Jürgensen
- William James Frodsham
-
XIX
- Aaron L. Dennison
- Achille Brocot
- Antoine Le Coultre
- Antoine Léchaud
- Auguste Lucien Vérité
- Charles Fasoldt
- Charles Frodsham
- Charles-Edouard Guillaume
- Constant Girard
- Edmond Jaeger
- Edouard Koehn Sr
- Edward Howard
- Ferdinand Adolph Lange
- Georges Frédéric Roskopf
- Georges-Auguste Leschot
- Hans Wilsdorf
- Henri Grandjean
- Henri Lepaute
- Henri Robert Ekegren
- Jean Celamis Lutz
- Jean Eugène Robert-Houdin
- Jean-Adrien Philippe
- John Harwood
- Jules Jürgensen
- Julien-Hilaire Rodanet
- Karl Moritz Grossmann
- Louis Leroy
- Louis Richard
- Louis-Clément Breguet
- Lyman W. Tompson
- Nicolas Mathieu Rieussec
- Sylvain Mairet
- Ulysse Nardin
- Victor Kullberg
Charles-Edouard Guillaume
1861-1938
Swiss physician.
Director of the International Bureau of Weights and Measures.
Nobel Prize for physics.
Development of anibal, a steel and nickel alloy, for the production of the integral balance wheel or Guillaume balance wheel: bi-metallic balance wheel (anibal-brass) where the secondary error is practically eliminated.
1895
Developed invar (abbreviation of invariable, name proposed by Genevan professor, Marc Thury), a steel and nickel alloy, to make precision pendulums: pendulums with an invar shaft.
1920
Development of elinvar, steel and nickel allow containing chromium and tungsten, to make self-compensating spirals.
HH Magazine News
Jaeger-LeCoultre wears its heart on its sleeve
22 May 2012
Among the lots at a forthcoming sale at Christie's in Milan will be three exclusive Jaeger-LeCoultre watches, made in su…
The phenomenal success of mechanical watches
15 May 2012
In ten years, mechanical watches have seen their share of total exports increase from less than half to almost three qua…