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Electric Clock Makers - Index
. All makers - Atomi
Eijsbouts
Kusnick-Hennequin
Rivex
. Amateur clocks
Electone
Lambert
Roamer Micro Quartz Marin
. Batteries
Electric clocks Leningrad
Landis
Robert Milne
. Slave clock collec
Electric Self Winder
Laplace
Rolex
. Unknown makers
Electro Clock Company
Lebret
Samples
. (1)
Elliott
Lenzkirch
Sangamo Electric Company
Abra watch co
Ergas
Lepaute
Satori
AEG
Ericsson
Leroy et Cie
Sauer
AFO Apparatenfabriek
Estyma and related transi
Loisel, A
Schatz
Alcy
Etalon
Longines
Schauer
American Clock Company
Eureka
Looping
Schild S.A(1)
American Reminder Cloc(1)
Ever Ready and Scott
Lowne
Schneider, F.W. - Korrekt
Angelus
Everett Edgecumbe
Lugrin
Schneider, F.X
Ansonia 'Electric Wind'
Evershed
Lux Manufacturing Company
Schönberg, Gustav
Aron - Heliowatt
EXA
Magneta - English
Schweizer
Assa
Farad
Magneta Swiss - Fischer
Secticon, Portescap
Assmann speaking clock
Favag
Marchino
Seiko
ATE quartz chronometer
Fedchenko
Margnoux
Self Winding Clock Co
Atlantic Clock Company
Ferat
Marti
Sempire Clock Company Gre
Ato
Féry
Matthew Norman
Sessions Clock Company
Automatic Electric Clock
Fischer Elec Clock Co NY
Mauthe - Dolektra
Seth Thomas Clock Co
Bain
Fred Frick Clock Co
MEC
Shepherd
Bangor Clock Co
Gensign
Mehne
Shortt Synchronome fre(1)
Bardon
Gent
Meisei
Siemens & Halske
Barraud and Lund
Gilette Electric Clock Co
Mercer and Mercer Octo
Silent Electric
Bäuerle
Gillett & Johnston
MF Manufacture Francaise
Silentia
Baume & Mercier
Girard-Perregaux
Mildé
Smiths
Bentley
Girod, ODO
Miller Program Clock Co
Sohm Electric Clock Compa
Benzing
Gisholt Manufacturing Co
Möller, Max
Solari
Berger
Glashütte
Monarch Telephone Co
South Bend Watch Co
Bizerba Chronostat
Godineau
Montre Royale
Speaking Clocks
Blodgett Bros. & Clock Co
Golay
Moser Baer
Standard Electric Cloc(1)
Bodet
GPO (British General Post
Murday
Standard Electric Time(1)
Bohmeyer
Grav- Elec Clock Company
National Electric
Standard Time Company UK
Borrel
Great Northern Telegraph
National Magnetic Corp
Steenhans Time-Tronic qua
Brillié and Vigreux-Brill
Gübelin
National Self-Winding Co
Sterling
Bulle
Haddon Products Inc
New album
Steuart, Alexander
Bulova
Hahl Pneumatic
New album(2)
Stromberg
Bürk (Württembergische Uh
Hammond Clock Company
New England Electric Cloc
Stromberg Electric Manufa
Burrell, AG and Co
Hansen Manufacturing Co
New Era or Electric Self
Stubner, Paul
Campiche
Harington and Sons
New Haven Clock Company
Svenska Elektriska Urf(1)
Capt
Herschede Electric Clock
New York Standard Watch C
Swissonic
Carl Gullberg
Herz & Sohn
No-Key Clock
Synchron
Carley
Hesar
Normalzeit
Synchronome
Cartier
Hipp
Nufa Holland
Synchronome Australia
Cauderay
Hoffmann
O B McClintock-Loomis Co
Synchronos electric kit c
Certina
Holden - LR - Exacta - Re
Observer marine style clo
SynClock
Charvet - Delorme
Hopkins, Munroe earth dri
O'Keenan
T and N, Elektrozeit, D.E
Château Frères - Collin
Houdin Robert
Olin
Telavox and Clementa
Chelsea Clock Co(1)
Hour Lavigne
Omega
Telephone Rentals
Cincinnatti Time Recorder
Howard
OREL
Themis
Citizen
Howard, E Clock Co
Paauwe
Thrasher Electric Clocks
Clairetta
Huc, Pablo
Pacific Electric Clock Co
Thwaites & Reed Ltd
Clementa - see telavox fo
IBM - ITR - National
Palmer C. F. Pyke
Tiffany Electric Manufact
Cluses (Ecole de Cluses)
IBM America
Patek Philippe
Time Telegraph
Collin and Wagner
Imhof
Paul Garnier
TMC and TEMCo
Copal
Imperial Clock Co
Pega - W. Zeh
Trinity Clock & Americ(1)
Cotna
Inducta - Landis & Gyr
Perpetua
TSC Tokyo Sokki Co. Ltd
Coventry Electric Cloc(1)
Ingrams and Ingram Brothe
Perret, David
Uhrenfabrik Mühlheim
Craig capt. E.E
Instanta
Peweta (Germany)
Ulysse Nardin
CWC Cabot Watch and Clock
International
Peyer Favarger
Ungerer
Cyma
International Time Record
Poole - Barr
United Clock Corporation
Dansk Normaltid
Isgus
Popp pneumatic
US Electric Clock Co. NY
Darche Electric Clock Co
ITF
Pragotron
Vacotti-Rosi
de Jong, F.C
ITR
Precisa
Van Slyke Self Winding Ti
Dehomag
Jaeger Lecoultre
Prentiss Clock Improvemen
van Vark
Dent
Jamin Zenith
Princeps
Vandeplancke -Tordoir
Derby
Jansen, F.W. Clock Co
Prouds
Vaucanson
Detouche
Jean Lassale
Puja (Jundes)
Vedette and Electro-Vedet
Diehl
Jeco
Rabe - Hanau
Venner
Dimep-Alto-Tagus
Jefferson Electric Co
Radio Electric Clock Corp
Vitascope
Dixi
Jones, H.E. (Synchronome)
Radiochron Rada-Chron
VoumardQuartz
Documents General
Jundes
Rapco
Wadsworth
DOLD V.C(1)
Junghans
Reclus
Wagner
Dori
Jura
Recta - Clerc (EC)
Wallace & Tiernan Product
Drawbaugh Electric Clock
Kappa
Reelfs
Waltham Electric Clock Co
Droz A
Kelvin Hughes
Reform
Warren Clock Company
Dubois
Kennedy Clock Co
Reguladora
Warren Telechron
Duboulet(1)
Keyless Clock Company
RemindoClock
Warwick Time Stamp Co
Duboulet(2)
Kienzle
Remington-Rand (Remington
Waterbury Clock Company
Dudley Railway Clock
Knoblich
Rempe Manufacturing Compa
Wempe, C.Plath
Dyna
Knudsen
Rex Mundi
West End Watch Co
E. G. L(1)
Kohler, Karl
RFT, Elfema
Westerstrand
E.N.E.M
Korfhage and Sohne
Richard and Leutz
Wise, S.J
Ebauches, Oscilloquartz
Koseisha
Richez, Charles
Zacharia
Eco Magneto
Krause
Riefler
Zenith - Jamin
École d'Horlogerie de (1)
Kuhne, E
Rigel
zzzz
ECS English Clock Systems
Kundo - Kieninger and Obe
Ritchie, James and Sons
Country of origin
:
The main country in which the clocks were manufactured. If unknown, use `unknown`
Australia
Austria
Belgium
Brazil
Britain
Canada
China
Czechoslovakia
Denmark
Egypt
France
Germany
Italy
Japan
Netherlands
Norway
Portugal
Russia
Spain
Sweden
Switzerland
USA
Unknown
Type of device
Master clock
:
A clock with contacts or any other mechanism to drive slave clocks
Slave dial
:
A clock with no timekeeping mechanism, requires a signal from a master clock to operate
Timeswitch
:
A device primarily designed to switch circuit(s) rather then tell the time
Programmer/bell ringer
:
A master or slave clock with mechanism to send multiple timed impulses to other equipment
Time recorder
:
A device recording time to a graph or chart recorder
Chronoscope
:
For measuring very short periods of time, not a clock
Strike/chime
Strike
:
Strikes hours or part hours
Chime
:
Musical chimes, mechanical or electronic
Case
4 glass case
:
4 glass sides, solid top or back
5 glass case
:
5 glass sides
Brass case
Plastic case
Wooden case
Glass dome round
Glass dome rectangular
Plastic dome round
Plastic dome rectangular
Round wall case
Rectangular wall case
Triangular case
Pyramid case
Portable case
Desk clock
Presentation case
Tank/cylinder
:
Observatory clock with pendulum in cylinder, usually metal or glass.
Timing control
:
Are there any 2/3 sec or 100 beat electric clocks? Yes Favag has 2/3 sec clocks
Balance
Pendulum
Pendulum longer than 1 sec
Pendulum 1 sec
Pendulum ¾ sec
Pendulum 2/3 sec
Pendulum half sec
Pendulum quarter sec or smaller
Quartz / electronic
Other oscillator
Tuning fork
Radio controlled
Synchronous motor driven
:
Includes most AC mains driven clocks
Driving power and reset
:
Ignore remontoire springs
Weight, rewound by hand
:
Traditional wind up clockwith weights on string/chain electric contacts
Weight, rewound by motor
:
eg T&N, Siemens, Wagner, Aron
Weight on lever, electrically reset
:
eg most synchronome, Gents C7, Poole, many early American clocks
Spring
:
Traditional wind up clock with electric contacts
Spring with electric reset/wind
:
eg Moller, Coventry electric, Lugrin
Continuously rotating motor
:
eg some O'Keenan, Steuart
Motor with intermittent winding
:
eg some O'Keenan
Vibration rewound spring
:
eg Carley
(Electro-)magnetic impulse
:
Electromagnet acts directly on pendulum or balance, eg Bulle, Brillie, Eureka
Hipp toggle
:
eg Hipp, Post office 36, Silent Electric
Power supply
Battery
Internal transformer
External low voltage connections
External mains AC connection
Time indicator
:
If no dial or other time indication leave blank
Seconds only
One dial
Two dials
Three dials
More than three dials
Observatory dial
Skeletonised dial/chapter ring
Calendar
Other indicator
Digital flap display
Digital electronic display/nixie
Second hand
No seconds
Centre seconds
Offset seconds or a second dial
Seconds indicator without hand
Link pendulum and movement
:
Gravity arm is not gravity escapement
Conventional clock escapement
:
eg early Synchronome, Gent Thornbridge
Gravity escapement
:
eg Ritchie slaves
Count wheel
:
eg most synchronome, Gents C7, Silent Electric, Post office 36 and 46, Brillie, Bardon
Electronic/optical
:
Mostly experimental and late 20th century
None – free pendulum
:
None – free pendulum rare clocks usually with two pendulums or modern with electromagnetic impulsing
Slave or pilot dial movement
Impulse movement
:
Armature turns count wheel, eg synchronome, Gents
Rotary movement
:
Coils spin armature, eg silent electric, T&N, Hipp slaves
Swinging arm/magnet
:
eg some Garnier, some G&J
Pneumatic
:
eg Hahl, Letory
Slave circuit
Unipolar
:
Most UK clocks 1840-1960
Alternating polarity
:
Most European clocks
More than 2 wires
:
Later systems with central slave adjustment
Categories
Unknown maker
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