Fourteen 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.
What the Contrôle Officiel Suisse des Chronomètres is, the seven test rules, the five canonical positions and how WatchScope verifies them.
Open the guide → Measurement · DiagnosticsRate, amplitude, beat error: what each parameter means, what healthy values look like, and when to start worrying.
Open the guide → Technique · ToolsQuiet environment, hardware calibration, external piezo mic: the three factors that take the smartphone to bench-grade precision.
Open the guide → Maintenance · DiagnosisWhen your watch suddenly starts running +40 s/d, try the 15-euro demagnetizer before booking a service. Cause, diagnosis and fix.
Open the guide → Culture · ISO 228103 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.
Open the guide → Technique · COSCCH, FH, 9H, 3H, 6H — why these five, what each one reveals about the movement, and how to run a complete session with WatchScope.
Open the guide → Maintenance · CostsReal-world intervals (not the 3–5-year marketing line), objective signals from WatchScope that flag an imminent service, typical costs by calibre tier.
Open the guide → Tool · AccuracyA smartphone timegrapher uses your phone mic plus DSP to read rate, amplitude and beat error. Here is how a timegrapher app works and how accurate it really is.
Open the guide → Compare · ToolsAn honest comparison of timegrapher options: Witschi and Weishi bench machines, Lepsi contact-mic devices, watch-o-scope software, and phone apps like…
Open the guide → Technique · AdjustmentLearn how to regulate a mechanical watch that runs fast or slow, adjust accuracy with the regulator, and recognise when to leave it to a watchmaker.
Open the guide → Reference · MovementDecode a mechanical watch spec sheet: what 17 jewels means, BPH vs Hz, lift angle, Incabloc and power reserve, plus mechanical vs quartz tells.
Open the guide → Troubleshooting · DiagnosisMechanical watch gaining or losing time? Learn the real causes of a watch running fast or slow, how to diagnose each one, and how to fix it properly.
Open the guide → Culture · TerminologyChronometer vs chronograph confuses everyone. One is a precision certificate, the other a stopwatch function. Here is the difference, explained simply.
Open the guide → Reference · Database57 calibers: Frequency, Lift angle, Power reserve.
Open the guide → Documentation · APPEverything WatchScope can do. From adding your first watch to predictive diagnostics, one screen at a time.
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