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Waterproofing chrono push buttons


hooky

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Hi guys,

I have a couple of PAM and FER.

when they arrived, i used to directly oil the O rings of the caseback and the crown stem. I greased them with Swiss Bergean sticky grease.

The one thing i do not know how to protect are those CHRONO PUSHERS.

Anyone has an idea if the chronopushers also can be protected, for maintenance, to keep them waterproofed, even after a couple of years?

For instance, can the pushers be removed to be able to get to the rubbers inside these chrono pushers?

Thanks,

Jouke

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@Rolexman,

Would you like to elaborate on this stage of the procedure?

These can be a serious mongrel to remove....I have my own technique..... and the replace stage....but would be interested in others technique!

Offshore

Thanks Rolex!

i just removed the movement and all. looking at that C clip with my loupe. Those are some really tiny mothers.

How did you remove them? even a pair of small tweezers can hardly get a grip. Could use a tiny screwdriver, but i do not want to break them. What is your procedure?

Thanks man!

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Indeed.. they are tiny as a mother. Ok here goes. I hope this makes sence.

With my left hand (I'm right handed) I push the case with the chrono pusher I want to remove on the table. So the table will push in the pusher. Now you will see the c-clip. Then I take a small flat screw driver and hold it (at the base of the tip) against the left opening of the c-clip with the point finger of my left hand. This way the c-clip can't turn or move when you try to remove it. Then I will use another flat tip screw driver in my right hand to push against the right opening of the c-clip and so removing it. It usually just falls in the case or jumps against the crystal. Not a great technique but it works for me... you also need a lot of patience and determination to get them out. Just take your time.

Good luck.

PS: Replacing is the easy part. Just take a tweezer. Position the clip on the shaft and push on the dead center point (the center of the round clip) with a flat tip screw driver. Make sure you push straight or else it will rocket off and you will never find it again LOL.

Edited by Rolexman
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Rolexman,

Thank you for your excellent post and for sharing your knowledge!! With these guideline, it will definately get the job done.

I will do it, and then will bring it to my local watch smith, to test waterproofing. Before, it could take nearly 5 bar. Hopefully now a couple of bar more. :)

When it is done, i will post it on this forum.

Thanks again Rolexman, You rock!!!

Jouke

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Rolexman,

Thank you for your excellent post and for sharing your knowledge!! With these guideline, it will definately get the job done.

I will do it, and then will bring it to my local watch smith, to test waterproofing. Before, it could take nearly 5 bar. Hopefully now a couple of bar more. :)

When it is done, i will post it on this forum.

Thanks again Rolexman, You rock!!!

Jouke

You're welcome.

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