OEM Crowns

[denisegold]

Will OEM crowns fit our DSN swiss watches? Anyone with experience??

 

[hooligan]

Check with beano2004 to be sure, but I believe not without mods. Like in Kruzer's thread over on RWG.cc, I believe the crowns use a smaller stem diameter 0.9mm than the standard 6497-1 stems (1.2mm). You can mount one, but it would take someone machining the stem thinner and then rethreading it, or using glue/epoxy to mount the crown to the thread. Ziggy has thread adapters, but the stems for the 6497 movements are too short to use adapters.

Hope this helps.

 

[denisegold]

thanks!

 

[hooligan]

My pleasure!

 

[hooligan]

My pleasure!

 

[Fish]

Drilling the gen crown to fit on a rep stem and the use epoxy is problematic. I use epoxy everyday (neat thin boatbuilders stuff, not the tick DIY mix) and it is really easy to mess things up with that stuff when doing really tiny things like that. To get a good precise mixture in small amounts (below 50g) you needs lots of care and not just guesswork, otherwise it will not get really hard but rubber-like and quite weak. Then it is not easy to do a clean job on a piece that is 1mm thick and 2.5mm long. However, you can give it a try or use cyanacrylate glue, but CYA-glue is not a good gap-filler. If you use EP you should have some acetone an q-tips for cleaning that thing right after. If it doesn´t get right , 150-200 deg. Celsius will open the EP-glue again.
However, getting it machined to fit properly seems much beter to me.
Good luck
B.

 

[hooligan]

Drilling the gen crown to fit on a rep stem and the use epoxy is problematic. I use epoxy everyday (neat thin boatbuilders stuff, not the tick DIY mix) and it is really easy to mess things up with that stuff when doing really tiny things like that. To get a good precise mixture in small amounts (below 50g) you needs lots of care and not just guesswork, otherwise it will not get really hard but rubber-like and quite weak. Then it is not easy to do a clean job on a piece that is 1mm thick and 2.5mm long. However, you can give it a try or use cyanacrylate glue, but CYA-glue is not a good gap-filler. If you use EP you should have some acetone an q-tips for cleaning that thing right after. If it doesn´t get right , 150-200 deg. Celsius will open the EP-glue again.
However, getting it machined to fit properly seems much beter to me.
Good luck
B.

That's exactly why ziggy won't try to fit them to the 6497 stems. :wink: Certainly not something that I would try to undertake, either.