Mechanical watch tester measuring
Supply voltage: single-phase AC 100V~240V ±10% two-line
Measuring for the beat error (frequency error): Numerical display in milliseconds. Resolution is 0.1 milliseconds; the measuring range is 0-9.9ms.
Amplitude measuremet” Numerical display in degrees, resolution is 1°, measuring range: 100° to 360°
Rate deviation measurement: the range of deviation is ± 999 sec /day, precision 1.0 sec/day.