Palmetto Posted April 29, 2008 Report Share Posted April 29, 2008 I'm in the process of replacing a broken 7750 movement with an Asian replica. Thanks to Edge's great tutorial, I'm almost done. The remaining piece I haven't been able to figure out is how to replace the plastic crown that came with the movement with the screw down crown that came with the case. I assume I'll need to trim the stem to fit, but I have no idea how short to cut it or how to attach the steel crown. Any help is appreciated. Thanks, Chris Quote Link to comment Share on other sites More sharing options...
importr Posted April 29, 2008 Report Share Posted April 29, 2008 Can you not re-use the original stem & crown? If not, you need small pliers to grip the flat sides of the original stem; then unscrew the crown. This will be a bit tight. measure the stem length with a vernier caliper/gauge. take the new stem and cut using pliers about 0.5 - 1mm longer. use a fine file or abrasive wheel to fine trim the excess length down use thread lock on the crown end of stem, screw crown on tightly. and thats it! Quote Link to comment Share on other sites More sharing options...
vric Posted April 29, 2008 Report Share Posted April 29, 2008 Since I will have a similar question (with a 44mm panerai) How do you measure if you don't have a steam to compare with? Brand new movement, project from scratch.. How to be sure you cut at the good place ? Quote Link to comment Share on other sites More sharing options...
HauteHippie Posted April 29, 2008 Report Share Posted April 29, 2008 Sneak up on it... In other words cut it too long, install the crown, install the stem, see how much more needs to be cut. Remove cut a little more, repeat until you get it just right. That's what I do. I think trying to get it perfect with the first cut is likely to result in a stem that is too short and unusable. Quote Link to comment Share on other sites More sharing options...
Guest porsche356a Posted April 29, 2008 Report Share Posted April 29, 2008 Sneak up on it... In other words cut it too long, install the crown, install the stem, see how much more needs to be cut. Remove cut a little more, repeat until you get it just right. That's what I do. I think trying to get it perfect with the first cut is likely to result in a stem that is too short and unusable. +1 Quote Link to comment Share on other sites More sharing options...
vric Posted April 29, 2008 Report Share Posted April 29, 2008 Thanks Chief Quote Link to comment Share on other sites More sharing options...
Palmetto Posted April 30, 2008 Author Report Share Posted April 30, 2008 Thanks guys Quote Link to comment Share on other sites More sharing options...
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