Helmut Sinn was originally a flight instructor and pilot and in 1961 he founded Sinn Spezialuhren GmbH, a manufacturer of mechanical wristwatches based in Frankfurt am Main under the name ‘Helmut Sinn Spezialuhren'.
Following its foundation in 1961, the company focused on the manufacture of navigation cockpit clocks and pilot chronographs and sold these through direct selling,
bypassing retailers. The clocks and watches were produced according to
pilot Helmut Sinn’s specifications in the private label sector in Switzerland.
By eliminating the trade margin of the retailers, the company was able
to offer its clocks and watches at a lower price than through
traditional sales channels.
Most of the company’s watches are assembled and regulated in
Frankfurt am Main. Over 12,000 watches are currently sold every year.
Mission timers for professional users also play an important role.
These include special forces such as the marine unit of the German federal police GSG 9, the fire service, divers and pilots.
German physicist and astronaut Reinhard Furrer wore the 140 S on his wrist during the Spacelab D1 mission in 1985, thus proving that a mechanical SINN watch with automatic movement also works with zero gravity.
During the Mir ’92 mission in 1992, astronaut Klaus-Dietrich Flade flew into space with a 142 S from Sinn Spezialuhren on his wrist. In 1993, it was the 142 from Sinn Spezialuhren that was on board the Columbia on Mission D2.
Mission timers for professional users also play an important role.
These include special forces such as the marine unit of the German federal police GSG 9, the fire service, divers and pilots.
German physicist and astronaut Reinhard Furrer wore the 140 S on his wrist during the Spacelab D1 mission in 1985, thus proving that a mechanical SINN watch with automatic movement also works with zero gravity.
During the Mir ’92 mission in 1992, astronaut Klaus-Dietrich Flade flew into space with a 142 S from Sinn Spezialuhren on his wrist. In 1993, it was the 142 from Sinn Spezialuhren that was on board the Columbia on Mission D2.
Source: wikipedia article on Sinn (watchmaker).
Watchuseek tried already to bury him once 5 years ago.
SINN SPEZIALUHREN WEBSITE
Instrument Chronograph 140 St S
The chronographs of the series 140 and 142 belong to our most illustrious timepieces. They have gone down in both watchmaking and space flight history. The German physicist and astronaut Reinhard Furrer wore the 140 S with Lemania 5100 movement on his wrist during the D1 Spacelab Mission in 1985. He was therefore able to demonstrate that automatic watches can function even in a weightless environment. In 1992 the astronaut Klaus-Dietrich Flade took his 142 S along with him on the Mir-92-mission.
We have now subjected the 140 model series to further technical development. It incorporates the SINN SZ01 chronograph movement. The most striking feature of the new design is the centre-mounted jump 60-minute stopwatch hand for improved readability. The bead-blasted stainless steel case is surface-hardened with TEGIMENT Technology. This forms the base for the Black Hard Coating. The 140 St S incorporate Ar-Dehumidifying Technology to increase the functional reliability and prevent fogging.
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