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Standard-quality 32 768 Hz resonators of this type are warranted to have a long-term accuracy of about six parts per million (0.0006%) at 31 °C (87.8 °F): that is, a typical quartz clock or wristwatch will gain or lose 15 seconds per 30 days (within a normal temperature range of 5 to 35 °C or 41 to 95 °F) or less than a half second clock ...
Verge and foliot escapement from De Vick tower clock, built in Paris, 1379, by Henri de Vick. The verge (or crown wheel) escapement is the earliest known type of mechanical escapement, the mechanism in a mechanical clock that controls its rate by allowing the gear train to advance at regular intervals or 'ticks'.
German clockmakers. Johann Baptist Beha (1815–1898) Gustav Becker Clock Company; Freiburg in Schlesien, Silesia (1850–1938) Florn. Thomas Haller (Thomas Haller AG), Schwenningen (1880-1900) then merged with Junghans. Thomas Ernst Haller (Haller AG), Schwenningen (1902-1928) then merged with Kienzle.
The factory increased in size during the 1960s and 70s, and employed approx 750 people, producing 350 models of clock, and producing 25,000 clocks per week. They became a manufacturer of the now iconic large 'Sunburst' chrome, teak and brass clocks. Metamec was the largest clock manufacturer in the UK at the time.
Countertop. A countertop, also counter top, counter, benchtop, worktop (British English) or kitchen bench (Australian or New Zealand English), bunker (Scottish English) is a raised, firm, flat, and horizontal surface. They are built for work in kitchens or other food preparation areas, bathrooms or lavatories, and workrooms in general.
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Anchor escapement. The anchor and escape wheel of a late 19th-century clock. The plate that normally holds the front end of the pinions has been removed for clarity. The pendulum is behind the back plate. In horology, the anchor escapement is a type of escapement used in pendulum clocks. The escapement is a mechanism in a mechanical clock that ...
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