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My Mido COSC runs Faster About 1-2 Minutes A Day

Calvin03
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Calvin03 New Member

Calvin03

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Hello 

I just bought A Mido watch pre-owned and certified COSC of course it must be a really accurate watch right but at least +/-10second a day worst

But this watch run fast like 1- 1.5 minutes a day...from the movement blue screws i see that the watch has never being serviced since it first owner,

I want to ask,does this watch need service or this watch got magnetize? Cause it just run fast 1-2 minutes fast and i see many articles say that magnetize watch can run fast to hours..

Thanks

watchweasol Distinguished Member

watchweasol

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Posted

Hi   With new members we do like an introduction,  As regards the watch, several things can cause it to run fast magnatism being just one. It is possible that the balance spring is sticking due to dirt or oil having migrated  or the coils are just touching as they ossilate  they are probably the most common, there are others.

Nucejoe Distinguished Member

Nucejoe

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The degree of percision COSC says your watch once enjoyed, is likely to have worn out by now. Though a skilled watchmaker can bring back a good degree of precision, a regular service that renders accepable accuracy is your best bet.

JohnR725 Distinguished Member

JohnR725

Posted
Posted

Another reason to not keep time is if the watches been dropped. Sometimes the regulating components will shift around. Worst-case sometimes they hairspring will go under the regulator arm and that makes a dramatic change in speed.

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