Calling @Archer, ACanuck, @ChrisN et al.

I'm servicing a Vostok Amphibia with a caliber 2416b.

The dial side seems to be a lot like Seiko date movements, but everything beefed up (and in steel) while the autowind mechanism resembles the ones I've seen in Girrard Perregaux movements.



The reverser wheels each contain five caged jewels that allow the wheel to freewheel in the anti-clockwise direction, but lock the wheel going clockwise.

My question is, should the jewels be dry or lubricated.

If lubricated, what oil/how much?

Thanks for any guidance.

Cheers
Jim

 

Found this service guide, think it has the info you’re looking for.

https://forums.watchuseek.com/f54/vostok-2416b-service-notes-240805.html

 

Thanks. I checked it and he used D5 on just one jewel.



I thought that might be a bit heavy for reverser jewels.
I was thinking of Lubeta V105, but don't know if it would be suitable for reversers of this design.

 

My opinion only, not based on any technical information I have read. If that watch was on my bench, I would put just a touch of lubricant on each jewel. My thought being that the viscous friction would facilitate the jewels rolling up the “ramp” to activate the reverser. If the jury calls me wrong, that is still what I would do.

 

I agree that D5 is too heavy for this. I would use 9010 if I was going to try applying oil directly. When I used to oil ETA style reversing wheels this way, it was just one very small drop of 9010 used inside the reverser, so I would try that here as well.

I use V105 now, and you have to be a bit careful to make sure you really blow out the excess, and after check that the wheel turns freely with a blower. I would be tempted to give it a try on these, knowing that if they won't operate correctly I would have to clean them again and use oil.

So it sort of depends if this is your watch, or a job for someone else, and if it's for someone else, are they willing to try this and send it back if the V105 doesn't work.

Cheers, Al

 

Thanks guys, I'll use 9010.

The watch came from here and was pretty beat up.

I think it'll turn out OK.

 

All done. Full service, clean, lube, adjust/regulate. Now running at +6 (± 2) seconds/day, 280º amp, 0.0ms beat at 42º lift angle.

Not bad for a beater.

 

Anyone else think this was not watch related by the title?

 

No, only you Foo.