IWC Pellaton Automatic Winding System Model

In 1950, IWC launched the automatic calibers 81 (small seconds) and 85 (center second) with a new automatic winding system developed by Albert Pellaton. I was able to get hold of a 5:1 scale model of this winding system made by IWC and present it to you here, as it illustrates the functioning of the Pellaton winding system particularly clearly.

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Hebdomas – a look into the watch movement

Hebdomas pocket watches have a high recognition value due to their appearance – the off-centered hands and the balance visible on the dial side with a large balance bridge immediately catch the eye. Here we take a look at the techniques of the movements of these watches.

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Froidevaux from Porrentruy in Switzerland

On September 15, 1898, Stanislas Froidevaux and Joseph Gaibrois founded the watch company S. Froidevaux & Cie. in Porrentruy, in the Swiss canton of Jura.

Pocket watch S. Froidevaux, around 1900

Just a few months later, in January 1899, the company registered its two first trademarks, two interlocking gear segments and VORWÄRTS (Forward):

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American Pocket Watch Movements

Movements of American pocket watches differ in many details from their Swiss counterparts. Here we look at some basics about them, without getting lost in the many deviations from the standards. American pocket watches are a topic with a lot of interesting things to discover.

Pocket watch with Hamilton 12 size Model 1 Grade 900
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