JlC Reverso stopped beating; HELP!

[minghan]

My knowledgeable fellow watch lovers:

I just purchased a jlc reverso tribute to 1931. It wound butterly smooth. However, today after I drained the battery and demagnetized it, I went ahead and wound it like usual. Only later did I realized that my Reverso is not beating even though I wound it. I checked and made sure I didn't over wound it. What's the problem???


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[abmukete]

That's looks stunning


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[SearChart]

Did you fully wind it?
Did you give it a little shake to get the escapement going?
Why did you demagnetize it?

[PJ S]

Battery? Presumably that’s a Freudian slip and you meant the let the mainspring wind down.
Aside from doing as Bas suggests with giving it a bit of a shake, there’s not much we can do for you – it’ll have to go to a good independent repairer or Richemont’s Service Centre.

[jctrolex]

Drained the battery?
Please explain

[minghan]

Sorry guys I meant "drained the power"


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[minghan]

Originally Posted by SearChart

Did you fully wind it?
Did you give it a little shake to get the escapement going?
Why did you demagnetize it?

It was going +30 s a day and I used a compass to check if it has been magnetized, which it was a bit.


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[minghan]

Originally Posted by SearChart

Did you fully wind it?
Did you give it a little shake to get the escapement going?
Why did you demagnetize it?

I fully wound it and gave a lot of shakes in hope that it was the escapement...


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[SearChart]

Originally Posted by minghan

It was going +30 s a day and I used a compass to check if it has been magnetized, which it was a bit.

I fully wound it and gave a lot of shakes in hope that it was the escapement...

If it were in fact magnetized in a way that the accuracy of the movement is influenced it would most likely gain a lot more than 30sec a day.

This is because the hairspring windings stick to each other and significantly shorten the 'effective work length', this makes it speed up and beat irregularly. 10-20sec per minute gain is not uncommon when a watch is magnetized.


Can you still wind the movement as you normally could? but it just won't run? Or can you not wind it at all?

[minghan]

Originally Posted by SearChart

If it were in fact magnetized in a way that the accuracy of the movement is influenced it would most likely gain a lot more than 30sec a day.



This is because the hairspring windings stick to each other and significantly shorten the 'effective work length', this makes it speed up and beat irregularly. 10-20sec per minute gain is not uncommon when a watch is magnetized.





Can you still wind the movement as you normally could? but it just won't run? Or can you not wind it at all?

I wound it to the point that if I were to give more force it might break the mainspring.. but it still won't beat):


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[SearChart]

Originally Posted by minghan

I wound it to the point that if I were to give more force it might break the mainspring.. but it still won't beat):


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I'd take it to the AD and let a watchmaker take a look at it. No way to tell what is going on without opening it.

[SearChart]

By the way, I wouldn't worry about overwinding the watch.
I've tested three different movements to see if I could overwind, I cannot snap the mainspring even when deliberately trying to.
Now this is no guarantee that it isn't possible with a little force, one mainspring can be a lot thinner and weaker than the other, but still. They are made to withstand quite a bit of force.