# Meridian M-01

> The M-01 is the first hand-wound calibre from Meridian, a one-bench watchmaker: 21 jewels, 28,800 vibrations an hour, 72 hours of power reserve. Wind it, take it apart under the loupe, and reserve one of eighteen.

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- [Meridian M-01 · A hand-wound calibre you can see inside](https://meridian.laarpi.com/index.md): The M-01 is the first hand-wound calibre from Meridian, a one-bench watchmaker: 21 jewels, 28,800 vibrations an hour, 72 hours of power reserve. Wind it, take it apart under the loupe, and reserve one of eighteen.