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Posted

Hi guys! Does anyone know how to remove a broke stem from a watch crown! The stem piece is level with the back of the crown, so there’s nothing to grab hold of, cheers! 

Posted

I had one success (and one failure) dissolving a broken stem out of a crown with Alum.

The successes was a stainless steel crown and a milder steel stem. A Tag Heuer 2000 Automatic - here with the solution at around 60ºC I could see small bubbles coming up from the stump of the stem and it took maybe 6 hours to disolve

I tried to repeat this with another watch and it did nothing.....  This was A Bulova Ambassador with what again looked like a stainless steel crown.
 

Posted (edited)

If you see at least one thread protruding, or even a half, then you may have a chance using this "tool", but don't squeeze hard.

Lot's of patience, and if you notice any signs of loctite or other adhesives, then apply several drops of acetone on top of broken stem. Use heat (hair dryer) also. You should be able gradually turn it counterclockwise, just like i did on this broken Timex stem, which was glued with something like nail hardener. Then you can use an extender to save your broken stem.

https://m.media-amazon.com/images/I/513DVvkfW5L.__AC_SX300_SY300_QL70_ML2_.jpg

 

You can also try cutting a small grove / slot on top of the broken stem to use 0.7mm flat screwdriver.

 

Depending on the Crown material and Stem material, you can try dissolving the stem. 

IMG_4030.JPG

Edited by Poljot

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