The new Uhrforum watch movement identifier

More than ten years ago, the German watch forum began collecting movements that were not listed in other online movement identifiers. From the individual contributions, I have compiled all movements sorted by size on a website and as a PDF document at longer intervals.

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System Glashütte – New insights

Some time ago, in the article System Glashütte – What’s that?, I explained where the term System Glashütte comes from and why it has more to do with Switzerland than with Glashütte. Naturally, the Swiss manufacturers of movements that were supposed to suggest that they were from Glashütte usually had no interest in leaving their company name on these movements. Accordingly, in some cases it is difficult to find the manufacturer or an exact caliber designation.

Watch movement System Glashütte
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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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