marsupilami Posted July 13, 2010 Report Share Posted July 13, 2010 http://cgi.ebay.de/RARE-MENS-OMEGA-CONSTELLATION-MINT-ORIG-BLUE-DIAL-DATE-/270604411643?cmd=ViewItem&pt=Wristwatches&hash=item3f0147a2fb#ht_786wt_913 I have the same watch, no caseback, movement is installed from top, like ploprof 600. maybe it uses the same stem like ploprof 600 ? any idea ? Link to comment Share on other sites More sharing options...
offshore Posted July 13, 2010 Report Share Posted July 13, 2010 If its a mono case back, it will have a split stem. Once you get the crystal out, you split the stem close to the case ( between dial and case) Search "split stem" O/S Link to comment Share on other sites More sharing options...
marsupilami Posted July 13, 2010 Author Report Share Posted July 13, 2010 is it like male and female part ? I have to lift the movement to seperate the two halfs ? then it Link to comment Share on other sites More sharing options...
offshore Posted July 13, 2010 Report Share Posted July 13, 2010 Read this- http://www.timezone.com/library/workbench/workbench631654780793976672 or this- http://www.pmwf.com/Watches/WatchSchool/WS%2020%20Patek%20Nautilus%20Quartz%20with%20Split%20Stem%20Battery%20Change/WS%2020%20Patek%20Nautilus%20Quartz%20with%20Split%20Stem%20Battery%20Change.htm Some come apart very easily, and others you really need to fight with for a while. At least here you can see the principle. Offshore Link to comment Share on other sites More sharing options...
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