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Tissot second gear movement

markr

By markr
in Watch Repairs Help & Advice

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markr Super WRT Addict

markr

Posted
Posted

Tossot sea star 784-2. The mail part of this gear comes in contact with the escape wheel face is up but when face is down gravity pulls it down and gears no longer engage. Are the ridges on the tip of the shaft supposed to stop it from traveling too far into the tube?  Very lose. does the end of the tube need to be closed a little?

IMG_5082.JPG

IMG_5084.JPG

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JohnR725 Distinguished Member

JohnR725

Posted
Posted

Maybe you could put the gears in the watch and give us a picture so we could see what you're talking about. I have an idea but I really need to see the two gears in the watch.So maybe just put these gears in the escape wheel and so we can see you don't have to put the main plate on top

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HectorLooi Distinguished Member

HectorLooi

Posted
Posted

Something doesn't look right. If you check some of the videos on YouTube, the 784 has another intermediate bridge and another wheel that engages the pinion of the escape wheel.

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JohnR725 Distinguished Member

JohnR725

Posted
Posted
9 minutes ago, HectorLooi said:

Something doesn't look right. If you check some of the videos on YouTube, the 784 has another intermediate bridge

Usually when you see wheels like this there is some form of intermediate plate in between the two. Looking at the parts list I could see what look like a plate but so much better if you can see a picture of the problem. Looking at the picture we can see there's a plate missing.

Found a video or someone servicing one of these and I got your picture I think of you put the plate in the wheels will function better.

https://youtu.be/UwU9cBMaDAA

 

 

 

missing plate.JPG

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