Introduction
Léo Aebi
Hermann Aegler
Jean Aegler  [2]
Auguste Agassiz
George B. Airy
Charles Aked
Elias Allen
John Arnold
John Arnold & family
James Arthur
Ernst Assmann
Julius Assmann
Paul Assmann
Louis Benjamin Audemars
Chris Bailey
Alexander Bain
Webb C. Ball
Charles-Ami Barbezat-Baillot
George W. Bartholomew
Louis Victor Baume
Pierre Cèlestin Baume
Jean-François Bautte
Beaumarchais  [2]  [3]
Gustav Becker
Johann Baptist Beha
Daniel Bernoulli  [2]  [3]
Ferdinand Berthoud  [2]  [3]
Josef Bidlingmaier
Milo Blakesley
Jehan Jacques Blancpain
Lorenz Bob
Bahne Bonniksen
Amédée-Phillippe Borrel
Louis Brandt
Abraham Louis Breguet  [2] [3] [4] [5]
Louis Francois Clément Breguet [2]
Carl Friedrich Bucherer
Harlow Bundy
Georg Matthias Burger
Jost Bürgi
Johannes Bürk
Louis Carpano
Hiram Camp
James Ferguson Cole
Jesse Coleman
William Congreve
François Constantin
Aaron Crane
Nicholas Cratzer
Theodore Crom
Alexander Cumming
George Daniels   [2]
Hans Dehmelt  [2]
Charles E. DeLong
Aaron Dennison
E. J. Dent  [2]
William Derham
Pierre Joseph De Rivaz
Maurice Ditisheim
Paul Ditisheim
Ephraim Downs
Francois Ducommun
William Wallace Dudley
Onésime Dumas
Walter H. Durfee
Johannes Dürrstein
Bonaventura Eijsbouts
Eise Eisinga
Albert Einstein
Henri-Robert Ekegrèn  [2]
John Ellicott
James E. English
Louis Essen
Thomas Earnshaw
Eduard Eppner
Lewis Evans
Nicholas Facio
Alexis Favre
Charles Fasoldt
Frédéric Louis Favre-Bulle
George-Emile Favre-(Bulle) Jacot
Oronce Fine
John Flamsteed
Sandford Fleming
Jean Foucault  [2]
Henry Fried
Ernest Francillon
Charles Frodsham
Belinda Fuzee
D. J. Gale
Galileo Galilei  [2]  [3]  [4]
Samuel Arthur Galpin
Georg Garbe
Robert Gardner
Gerbert of Aurilliac
William L. Gilbert
Karl Giebel
Hermann. Goertz
George Graham
David Henri Grandjean
Henri Grandjean  [2]  [3]
Lord Grimthorpe
Jules Grossman
Moritz Grossman
Dietrich Gruen
Charles-Edouard Guillaume  [2]
Chr. Friedrich Gutkaes
Isaac Habrecht
Phillip Matthäus Hahn
Jonas G. Hall
Edmond Halley  [2]
Henning Hammarlund  [2]
Wilhelm Julius Hanhart
Peter Andreas Hansen
Johan Anton Harder
John Harrison  [ H-4 ]
John Harwood  [2]
Kintaro Hattori
George Heinrich
Edgar Heirman
Alfred Hellwig
Max Hetzel  [2]
Edouard Heuer
Charles T. Higginbotham
Bruno Hillmann
Matthäus Hipp  [2]
Adolphe Hirsch  [2]
Karl W. Höhnel
Steven Hoogendijk
Robert Hooke  [2]  [3]  [4]
Frank Hope-Jones  [2]
Jacques-Frédéric Houriet  [2]  [3]
Edward Howard
Andreas Huber [2]
Bernard Humbert
Christiaan Huygens  [2] [3] [4] [5]
Charles Ingersoll
Robert Ingersoll
Pierre Frédéric Ingold
Elias Ingraham
Joseph Ives
Edmond Jaeger
Antide Janvier  [2]
Frédéric Japy  [2]
Henri Louis Jaquet-Droz  [2]
Pierre Jaquet-Droz  [2]
Daniel JeanRichard  [2]  [3]
Louis JeanRichard
Hans Jendritzki
Chauncey Jerome
Arthur Junghans
Ehrhard Junghans
Jules Jürgensen  [2]
Urban Jürgensen  [2]
Ernst Kasiske
Lord Kelvin
Frank B. Kendrick
Heinrich Johannes Kessels
Joseph Kieninger
Wilhelm Kieninger
Jakob Kienzle
Edouard Koehn Sr
Nicholas Kratzer  [2]
Victor Kullberg
Alfred Kurth
Paul Landenberger
Oscar T. Lang
Adolph Ferdinand Lange
Richard Lange
Friedrich Emil Lange
Isaac Larpent
Mark Leavenworth
Antoine LeCoultre
Elie LeCoultre
Jacques-David LeCoultre
Prof. Ing. Ludwig Lehotzky
Jean André Lepaute
Nicole Reine Lepaute
Auguste L'Epee
Jean Antoine Lépine
Julien Le Roy  [2]
Louis Le Roy
Pierre Le Roy
Georges Leschot  [2]
Jean Frédéric Leschot
Benjamin Bennet Lewis
Nicholas Lipp (Lippius)
Fred Lip
Edward Thomas Loseby
Thomas Lister
Louis Lossier
Robert Mann Lowne
Isaiah Lukens  [2]
Sylvain Mairet
Warren Alvin Marrison
Friederich Mauthe
Thomas Mercer
Ottmar Mergenthaler
George Mitchell
Louis Moinet
Gabriel Moreau
Heinrich Moser
Jean François Motel
Thomas Mudge  [2]
Hugo Müller
Asa Munger
Ulysse Nardin
Jens Olsen   [2]
Gulieimus Oughtred
Charles Auguste Paillard
Brooks Palmer
A. N. de Patek
David Penney
Constant Girard Perregaux
Constant Girard Perregaux with Marie
Abraham-Louis Perrelet   [2]
Louis-Frédéric Perrelet  [2]
David Perret
Adrien Philippe
Eduard Phillips
Christopher Pinchbeck
Noah Pomeroy
Charles Poncet
Chester Henry Pond
Albert H. Potter
Walter Prell
Isidor Isaac Rabi
Norman Ramsey
Johannes Rauschenbach-Schenk
Auguste Raymond
Benjamin Wright (B. W.) Raymond
Antoine Redier
Jean Leon Reutter
Sigmund Riefler
David Rittenhouse
Royal Robbins
Charles-Yvan Robert
Jean Eugène Robert-Houdin  [2]  [3]  [4]
Henri Robert
Robert Robin  [2]
Julien Hilaire Rodanet
George Frederic Roskopf  [2]
William H. Samelius
Henri Sandoz
Hubert Sarton
Claudius Saunier
Urs Schild
William Schoof
Jean Schwilgue
Herbert Scott
William Edwin Sessions
William Hamilton Shortt
Auguste Sirand
Solomon C. Spring
Carl August Steinheil
Ludwig Strasser
Reinhard Straumann
Friedolin Stübner
Paul Stübner
Henry Sully
Tardy (Henri Lengellé)
Etienne Tavernier
Eli Terry Sr.  [2]
Samuel Terry
Theodore Terry
Charles Terwilliger [2] [3] [4]
Christian and Georg Thiel
Seth Thomas
Gédéon Thommen
Lyman W. Thompson
Jacques Thuret
Marc Thury
Christian Friedrich Tiede
Charles-Emile Tissot
Charles-Félicien Tissot
Thomas Tompion
George E. Townsend
Abraham Vacheron
Auguste Lucien Vérité
Leonardo da Vinci  [2]
Simon Vissière
Benjamin Vulliamy
Carl Theodor Wagner
Michael Weber
E. N. Welch
Emil Welte
Michael Welte
Johann Friedrich Weule
Charles Wheatstone
Riley Whiting
John Wilding
Simon Willard  [age 37]  [age 92]
Hans Wilsdorf
Joseph Thaddeus Winnerl
Louis Zimmer