Tg – the open source timegrapher
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Tg is a timegrapher program: a software used to regulate mechanical watch movements and evaluate their performance. Tg detects the noise produced by the mechanism of a watch, analyzing that noise it computes real-time readings of the rate (i.e. how fast or slow the watch runs) and other operational parameters (beat error, amplitude).

Tg is in development, and there is still no manual. For more info on tg see and this thread at WUS. In particular, the calibration procedure is described at this post.

Microsoft Windows installer (7 and above)


Microsoft Windows installer (up to Vista)


Microsoft Windows

Mac OS X

Follow instructions here.

Linux Debian—Ubuntu—Mint—etc. (Intel 64 bit)


Linux Debian—Ubuntu—Mint—etc. (Intel 32 bit)


Source code