Jump to content

Recommended Posts

Posted (edited)

This my mother-in-law's, I thought it's a routine battery change but to my dismay the caseback is integrated with the part of the case hoding the movement and so once I popped off what I thought was the back cover, I was staring down at a naked dial. Any ideas how to get at the back of the movement? I don't see any obvious way of removing the stem...

image.thumb.png.cc2de1f9a526c9a0a7b0f1d5f4af75e9.png

Edited by fiddler
Posted

 Hi try to list the movement out it may just be tight, looking at the pictures close up it shoulf come out, may need a little help.  Use a cocktail stick shaped to a wedge to ease it out.

Posted
8 hours ago, Nucejoe said:

Movement with crown attached should lift right off.

 

The picture is a not very good, sorry about that. The stem is going through a tube, going through the side wall of this case. The stem cannot go through that way, as far as I can tell.

Posted
52 minutes ago, fiddler said:

The stem is going through a tube, going through the side wall of this case. The stem cannot go through that way, as far as I can tell.

Remove the bezel and crystal and as mentioned the mov.t will follow up. 

Posted
57 minutes ago, jdm said:

Remove the bezel and crystal and as mentioned the mov.t will follow up. 

The crystal and bezel are already separated from the movement.  image.thumb.png.a5d8f7e37f45cd695efc75d245b93122.pngG

Posted
4 minutes ago, fiddler said:

The crystal and bezel are already separated from the movement.

Sorry I  missed that.  Now while slowly turning the crown, lift gently at 3H and 9H,  and the two parts of the stem should separate. The reverse to refit it.

Posted
2 hours ago, fiddler said:

The picture is a not very good, sorry about that. The stem is going through a tube, going through the side wall of this case. The stem cannot go through that way, as far as I can tell.

So,  its a split stem, which you can pull the male part out with a nipper.

Posted
12 hours ago, Nucejoe said:

So,  its a split stem, which you can pull the male part out with a nipper.

You could. But, when a gentler way can be used, that should be preferred as it avoids all stress.

Beside, then you have the issue of refitting the stem, pressing the two halves often breaks it and should never done, so better to either to align the joint, otherwise remove the inner portion from the movement.t, join the two parts outside the case, then refit.

  • Thanks 1
Posted (edited)

Oof, sounds like I got myself into more of a pain in the butt than I thought. Thanks to both of you for your help. I'll have a go at this later...

Edited by fiddler
  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • it would be nice to have the exact model of the watch the or a picture so we can see exactly what you're talking about. this is because the definition of Swiss watch could be a variety of things and it be helpful if we could see exactly the watch your dealing with then in professional watch repair at least some professionals they do pre-cleaned watches. In other words the hands and dial come off and the entire movement assembled goes through a cleaning machine sometimes I think a shorter bath perhaps so everything is nice and clean for disassembly makes it easier to look for problems. Then other professionals don't like pre-cleaning because it basically obliterates the scene of the crime. Especially when dealing with vintage watches where you're looking for metal filings and problems that may visually go away with cleaning. Then usually super sticky lubrication isn't really a problem for disassembly and typically shouldn't be a problem on a pallet fork bridge because there shouldn't be any lubrication on the bridge at all as you typically do not oil the pallet fork pivots.  
    • A few things you should find out before you can mske a decision of what to do. As Richard said, what is the crown and all of the crown components made of . Then also the stem .  The crown looks to have a steel washer that retains a gasket. So be careful with what chemicals you use to dissolve any stem adhesives or the use of heat. You might swell or melt the gasket unless you are prepared to change that also . The steel washer maybe reactive to alum. Something I've just used to dissolve a broken screw from a plate. First drilled out the centre of the screw with a 0.5mm carbide . Dipped only the section that held the broken screw in Rustins rust remover. This is 40 % phosphoric acid. 3 days and the screw remains were completely dissolved, no trace of steel in the brass threads. A black puddle left in the solution.
    • I suppose this will add to the confusion I have a roller jewel assortment. It lists out American pocket watches for Elgin 18 size and even 16 size it's a 50. But not all the various companies used 50-50 does seem to be common one company had a 51 and the smallest is 43. American parts are always interesting? Francis Elgin for mainsprings will tell you the thickness of the spring other companies will not even though the spring for the same number could come in a variety of thicknesses. But if we actually had the model number of your watch we would find it probably makes a reference that the roller jewel came in different dimensions. So overlook the parts book we find that? So it appears to be 18 and 16 size would be the same sort of the arson different catalog numbers and as I said we don't have your Mongol know which Log number were supposed to be using. Variety of materials garnered her sapphire single or double but zero mention about diameters. Then in a section of rollers in this case rollers with jewels we do get this down in the notes section Roller specifications but of course zero reference to the jewel size. I was really hoping the roller jewel assortment would give us sizes it doesn't really. But it does show a picture of how one particular roller jewel gauge is used  
    • Seems to still do it through my mobile data, I use an android phone almost exclusively, but I'll double check it. Thanks mark Strange, I'll try my laptop that utilities edge. I've been on site half hour since I got home, it hasn't done it yet. Thanks John
    • At work, I'm on MS Edge, not through chose, on my phone, chrome, no issues with either. 
×
×
  • Create New...