Mido Mechanical Watch Error Criterion

Mido Mechanical Watch Error Criterion

Whether mechanical watches or quartz watches, the error will always be one of the topics of the word table faithful. For Mido watch it, there will still be a margin of error, always exactly right Mido watches virtually non-existent, like a slight error of tens of seconds is not easy to find. Then the standard error of mechanical watches Mido?
Mido Mechanical Watch Error Criterion
Imports of mechanical watches differ +/- 30 seconds can be called “accurate” Every day, according to the Swiss Observatory certification system (COSC), mechanical watch every day differences -4 / + 6 seconds then has been called “accurate “certified and issued by the Observatory; tighter Geneva Seal, has also allowed to watch – 3 / + 2 seconds tolerance per day. As long as the error is within a reasonable range, and can be predicted and corrected, that is acceptable. If the error is beyond reasonable limits, it is the failure to get the first mechanical calibration of the tester qualitatively.

On the market Mido mechanical watches. Since the spring of structural features, materials, friction and fatigue, the output torque between the ring changes from strong to weak, and the like clockwork and friction gear torque generated during transportation, it will affect the accuracy of travel time clocks. Further climate, environment and regional location, also for the normal operation of Mido winding influential. Now quartz, mechanical watches to overcome weaknesses, take advantage of extremely stable frequency vibration of a quartz crystal as a reference time, by dividing the circuit into a second after the division, and then through the micro-stepper motor driven gear or scan , a pointer to tell time, even so, but the temperature change of the interference by using quartz crystal, an error will occur, the speed is generally 15 seconds per day. This is allowed.

Mido quartz electronic watches daily error of less than 0.5 seconds, one-tenth of a few mechanical watches Mido, mainly due to quartz crystal oscillators in high and stable oscillation frequency.