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Wittnauer movements were at the beginning generally made for them by Swiss firms (Revue Thommen and others), while in later years Wittnauer used a number of different sources for their movements. The company began as a small family business, catering to the ever-growing world of both scientific and private exploration, which gained them a ...
Hermle Clocks (1922–present) Junghans, Schramberg (1861–present) Kieninger Clock Company, initially in Mönchweiler, 1921 new factory in Aldingen (1912–present) Kieninger & Obergfell Uhrenfabrik (KUNDO trademark), Sankt Georgen (1918 - recent) Kienzle Uhren, Schwenningen - Schlenker and Keinzle until c1897 (1883-1996) Franz Ketterer
In 1883, the Thorens family business was first registered in Sainte-Croix (Ste-Croix), Vaud, Switzerland by Hermann Thorens. An initial producer of musical boxes and clock movements (which they were still producing in the 1950s), as well a cigarette lighters, they started producing Edison-type phonographs in 1903. Thorens TD190-1 (first 190 ...
Within a few years the Sessions Clock Company was producing clock movements, cases, dials, artwork and castings for their line of mechanical clocks. Between 1903 and 1933 Sessions produced 52 models of mechanical clocks, ranging from Advertisers, large and small clocks with logos of various businesses, to wall, or regulator clocks, and shelf or ...
In 1902, Kienzle launched the time stamp clock on the market and the first clocks for automobiles. The "Strapazier-Armbanduhr" was presented in 1931, and 25 million were sold. [2] At the end of the 1930s, Kienzle started the manufacture of two table clocks in the upper price segment: the Zodiac Clock and the World Time Clock.
founder of the clock company Bürk. Gustav Eduard Becker (1819–1885), German clockmaker from Schlesien, founder of the Gustav Becker clock company. Eduard Phillips (1821–1889), French mathematician, Paris, precision adjustment, compensating balance wheels. Johann Ignaz Fuchs (1821–1893), German mechanic and clockmaker, Bernburg, Turmuhren.
'Seiko Quartz Automatic Generating System' (A.G.S. = early Kinetic), Perpetuum Nobile (produced in 1989), Cal. 7M45, No. 246 of 700 Seiko AGS SCUBA Diver 200m 5M23-6A60, 1993 Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [ 1 ] (as used in automatic mechanical watches ) to generate ...
The electric clock market grew rapidly in the 1930s, and Telechron's patented power interruption indicator gave his clocks an advantage over competing synchronous clocks, but by the 1950s battery-operated clocks that weren't dependent on the power grid took market share, and in the 1960s the quartz clock replaced synchronous clocks.