Index · Editorial guides

Resources for those who love watches.

Eight guides on measurement, maintenance and the culture of mechanical watches. From the COSC protocol to the piezo contact mic, from magnetization to service: everything WatchScope has to say, in a single index.

Standard · ISO 3159

COSC Guide

What the Contrôle Officiel Suisse des Chronomètres is, the seven test rules, the five canonical positions and how WatchScope verifies them.

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Measurement · Diagnostics

Reading the timegrapher data

Rate, amplitude, beat error: what each parameter means, what healthy values look like, and when to start worrying.

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Technique · Tools

How to get better measurements

Quiet environment, hardware calibration, external piezo mic: the three factors that take the smartphone to bench-grade precision.

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Maintenance · Diagnosis

Magnetization: the invisible enemy

When your watch suddenly starts running +40 s/d, try the 15-euro demagnetizer before booking a service. Cause, diagnosis and fix.

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Culture · ISO 22810

The truth about water resistance (ATM)

3 ATM doesn't mean 30 metres of diving. What ATM/BAR/metres ratings actually mean and why a splash-resistant watch doesn't belong in the shower.

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Technique · COSC

The 5 positions of horology

CH, FH, 9H, 3H, 6H — why these five, what each one reveals about the movement, and how to run a complete session with WatchScope.

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Maintenance · Costs

When to service your watch

Real-world intervals (not the 3–5-year marketing line), objective signals from WatchScope that flag an imminent service, typical costs by calibre tier.

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Documentation · APP

App Manual

Everything WatchScope can do. From adding your first watch to predictive diagnostics, one screen at a time.

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