WatchScope

What it does

Turn your phone into a watch timegrapher. COSC test on 5 positions, real-time rate, amplitude and beat error, collection archive. Free on Android.

WatchScope turns your smartphone microphone into a timegrapher. Listen to the balance wheel beat, calculate rate, amplitude and beat error in real time, and archive every measurement alongside your collection — to COSC tolerances. Open WatchScope, rest the watch on your phone's microphone, and within seconds you'll see the balance wheel beating live. Five positions, twenty-four hours, and WatchScope compares the rate to the ISO 3159 tolerances: −4 ÷ +6 s/d, Δmax 10 s/d. Rate and beat error are plotted in real time, sample after sample. The same reading you'd get from a Witschi bench timegrapher, on your phone screen. Three KPIs in lockstep. Each number with its own unit, colour-coded…from watchscope.app

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