Tuesday, 8 July 2025

COGU "Jump-Hour" Automatic Watch

Today's watch has one of the most awkward ways of telling time that I've seen in a mechanical watch.

The watch is by the brand COGU, which is a brand I've blogged before, and appears to be a Chinese brand which is said to be an Italian brand founded by Cosimo Gucci. Many things do not make sense with the brand/description so I can't vouch for the accuracy, but they make some interesting watches.

I called this watch a "jump-hour" but it isn't like the more common jump-hour which has a rotating disc. Instead this watch has a normal looking dial, but closer inspection shows the numbers are scattered around the dial. The way the watch works is that at the change of the hour, the hour hand jumps 5 numbers clockwise (5/12 of a rotation) around the dial (instead of the usual 1/12th), but the minute hand rotates as normal. It takes the first few minutes of the new hour for the hour hand to move though. This is all powered by an automatic mechanical movement with a glass window in the back where the weight (and some of the mechanism) can be seen.

Because the hour hand doesn't move during the hour, and the number placement is definitely abnormal, it is a watch that takes some time to get used to telling the time on. But it's definitely a cool idea and fits well into my collection

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