HoroCalc — ASO
By NICHOLAS EDWARD WHITE on AppTrack Ninja.
Watch & Clock Calculator
Five precision calculators for mechanical watch and clock work — all offline, no accounts required. MAINSPRING SIZER Enter the barrel bore, arbor diameter, and barrel height to calculate the correct spring length, width, and thickness using the standard ⅓ barrel-fill rule. Enter the spring thickness if known for an exact result. BEAT RATE Select from the six most common frequencies or enter any BPH value. See the balance frequency in Hz, beat interval in milliseconds, and beat period. Enter a measured daily rate error to see the deviation in parts per million against the COSC chronometer stan…
Categories: Utilities
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