Jump to content

Reversing And Auxiliary Reversing Wheels


Recommended Posts

Hello everybody!

My name is Bogdan and I am a what you would call a watch enthusiast.

 

Could anyone describe a technique of cleaning and oiling the reversing and auxiliary reversing wheels from the automatic part of an ETA (parts 1488 and 1530). Maybe even a video ;)

 

I know that for 2824, the service manual (from www.eta.ch) says they shouldn't be washed but replaced when needed. But for the older and nomore produced model ETA 2846, the service manual (from cousinsuk) doesn't say not to wash them, but to use moebius 9010 to oil them.

 

I sincerely hope that the whells from 2824 will fit the 2846 as I will get my hands on a set of those in a couple of days.

 

Thank you,

Bogdan

 

Link to comment
Share on other sites

Welcome to the forum Bogdan you will find this a friendly and knowledgable place.

I'm sure that Mark who runs the forum will give you good advice regarding your maintenance problem.

Link to comment
Share on other sites

The 2824 and 2846 movements share the same reversing wheels.

 

It is best to replace them as they are very cheap (both coming to a little more than £10).

 

I have cleaned them in the past and lubricated them by dissolving some 9010 in Horolode and soaking the wheels in them - but it's more trouble than it's worth and it's quicker, and less messing about, to just replace them :)

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I'll have a look for it, but don't hold your breathe. Failing that I'll make another video when another bezel needs to be removed.
    • The UK lots can be a 404 hit or miss, 6 - 10 watches can come in anywhere from 20 - 50 quid. I once had a 404 division of 8 watches for a fraction over 30 quid, one of them was a Smiths Astral model National 17 an absolute certainty for winner contender. The crystal was scrached up to the point of being very difficult to see the brand, something triggered a gut feeling in me and it paid off.
    • I just picked up this Mondaine quartz watch on tradera.com for £11. It's a non-runner so I will replace the Ronda movement (£10.95 at Cousins), polish the case, replace the case-back gasket, and replace the mineral crystal. Now, the problem is finding a suitable crystal. The original crystal is slightly domed (2.4mm thick dome), measures 36.4mm in diameter, and is 1.3mm thick at the edge. The closest I can get on CousinsUK is 36.5mm in diameter, 3.1mm thick dome, and 1.5mm thick at the edge. I think the replacement crystal would look OK, but the problem is finding a suitable glass gasket. The case diameter for the glass gasket is 36.9mm and the closest glass gasket I can find on CousinsUK is either 36.8x36.0mm or 37.0x36.2mm. I guess one of those glass gaskets could work but as you can see there's no way the 36.5mm domed crystal would fit the inner diameters of those glass gaskets. I guess I will have to give up on a domed crystal, no? So, the backup plan is to use a (1.5mm) thick flat mineral crystal as the diameters come in increments of 0.1mm. But, what glass gasket would be the better option? The one with an outer diameter of 36.8 (0.1mm too small) or the one with an outer diameter of 37.0mm (0.1mm too large). Again the case diameter for the glass gasket is 36.9mm. I believe I read or heard that the crystal diameter should be 0.1mm wider than the inner diameter of the glass gasket. Is that correct? I'm sorry for all the numbers. I've tried to make it as clear as I could. So, I'd appreciate your thoughts on this. BTW, measuring and sourcing crystals and gaskets is extremely time-consuming! 😓
    • Lots to choose from... Just sayin'.
×
×
  • Create New...