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Omega Split stem issue (will not go back in)

oli

By oli
in Watch Repairs Help & Advice

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oli WRT Addict

oli

Posted
Posted

Hi all

I have an interesting one here...

Working on an Omega Calibre 565, the watch is a front loader with monocoque case,  no case back, hence the split stem.

I extracted the split stem, with no issue as I have done many times before, serviced the movement, but now cannot fit the stem back in without pressing the little pusher / detent on on the upper side (which obviously is not accessible when the watch is cased!).

I have noticed the split stem which was in the watch does not have an angle/ bevel to help the setting lever slide over the shoulder into its groove. 

IMG_20171204_121639.jpg?dl=1

 

Other Split stems I have come across have a bevel, so it is easy to just slide the stem back in. Eg. below of another split stem, taken from an ETA 2750:

IMG_20171204_121751.jpg?dl=1

 

I thought I simply had the wrong part, but it begs the questions:

- how did the previous watchmaker who worked on this watch fit the stem?

- I have googled Omega split stems, and it seems some do not have the bevel, so I may well have the correct part?

 

Am I missing something? How can I put this back in?

 

I would welcome any advice!

 

oldhippy Distinguished Member

oldhippy

Posted
Posted

Try a little grease on the beak of the stem where it snaps on. Sometimes dirt can get packed hard in the button preventing the button to fix flush against the case causing it to not make contact.  Try another stem if you have one in stock.

jdm Distinguished Member

jdm

Posted
Posted

Surprised by this question, you do the inverse steps as for removing.

Fit the inner stem part with mov.t removed.
Fit mov.t in case.
Fit outer stem / crown.

vinn3 Distinguished Member

vinn3

Posted
Posted
Quote

 

"the two piece stem"   the part that goes into the movment  must be set first and tested ( winding and move the hands)  then put it in the case. vin

oldhippy Distinguished Member

oldhippy

Posted
Posted
19 minutes ago, jdm said:

Surprised by this question, you do the inverse steps as for removing.

Fit the inner stem part with mov.t removed.
Fit mov.t in case.
Fit outer stem / crown.

Do you think he is trying to fit the whole stem and just attach the button part. If so my answer is very wrong.

oli WRT Addict

oli

Posted
  • Author
Posted

Hi all thank you very much for your responses.

Clearly I was missing something here, very sorry if this sounded like a stupid question... It all makes sense now.

I was trying to insert the whole stem (male + female assembly + crown) with the movement in the case - it works when there is a "bevel" on the stem. I have never "clipped" the female part on the male part with the movement in the case before, I did not realise you could do that, a bit silly of me really.

Thank you!

  • Like 1
  • 6 years later...
Rustinbox Member

Rustinbox

Posted
Posted (edited)
On 12/5/2017 at 2:38 AM, jdm said:

Surprised by this question, you do the inverse steps as for removing.

Fit the inner stem part with mov.t removed.
Fit mov.t in case.
Fit outer stem / crown.

Bringing this old thread back to life, as I have similar problem. I did follow this advice, but while inserting a male stem (crown side) and just pushed it to the female part, and the fork (female side) of the stem has broken. What is the right way? Push the stem part so it widens the gap and fits in? Why it was then receiving side got broken? Old metal? It is a vintage watch from late 60s. 
 

or the outer part should be inserted somehow from the side (slipping to the gap), but I don’t have space there for this manipulation. The watch is Orient Fineness monocoque case.
 

thank you!  

Edited by Rustinbox
oldhippy Distinguished Member

oldhippy

Posted
Posted

Is the old stem rusty, are you sure you have it all lined up. Some of these two piece stems can be fiddle that is why I mentioned about the grease. Could you post a photo of the offending stem.  

Rustinbox Member

Rustinbox

Posted
Posted
18 minutes ago, oldhippy said:

Is the old stem rusty, are you sure you have it all lined up. Some of these two piece stems can be fiddle that is why I mentioned about the grease. Could you post a photo of the offending stem.  

Thank you. It didn’t look rusty. For sure old. 
 

Female part was inside the movement, and when I pushed male part, it got broken. I didn’t apply grease. Here is the photo. 
 

 

IMG_0702.jpeg

Could it be that male part is too thick for some reason?

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