In-house and other movements

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koimaster
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In-house and other movements

Post by koimaster » July 10th 2020, 10:29pm

In 1888, when the Kurth brothers founded their company called Kurth Frères, only watch parts and movements were produced. These were sold in Switzerland and France. Various manual-winding movements were in the product range until 1947 when the first self-winding movement – the hammer-winding KF 360 – came out. The first self-winding movement with a rotor (the KF 21-0114 movement, introduced in 1950), was derived from the AS 1323 movement. Finally, in 1951 with the 25-45, the first Certina-developed self-winding movement came onto the market. The 28-45 movement line was launched in 1953 and had the same construction characteristics as the previous movement, except that the diameter was 3mm bigger. Maybe you had already noticed: the first number in the movement designation stands for the diameter in millimetres.
In 1954, Certina began providing Hamilton with self-winding movements, and did so for a few years. Hamilton saw a need to add automatic wristwatches to their line but they had no such movements.

http://www.vintagecertinas.ch/en/movements-en/
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TemerityB (Online)
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Re: In-house and other movements

Post by TemerityB » July 11th 2020, 7:19pm

bbattle wrote:
July 11th 2020, 7:02pm
In-house movements are great; outhouse movements, especially in cold weather, not so great.
Ok, I laughed. :trophy:

I actually learned some stuff from this thread, though - not the least of which is that there's a website called "Vintage Certinas."
WatchGeeks will go down in watch forum history as the worst watch related site that existed. Trolls, threats, bannings, and owners and sponsors talking out of their collective asses to fleece people out of hard earned money. - Koimaster
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