FxrAndy Posted May 30, 2010 Report Share Posted May 30, 2010 Happy with using heat to loosen the glue on a sapphire but is it possible on a plexy? Quote Link to comment Share on other sites More sharing options...
ubiquitous Posted May 30, 2010 Report Share Posted May 30, 2010 I've done so before while experimenting on aftermarket crystals... But for gen, you may be better off just going with a proper Tropic over Cyclope. e.g. if you are swapping a 1680 25-127, you can use the 25-19 for the no-cyclops look. Quote Link to comment Share on other sites More sharing options...
chefcook Posted May 30, 2010 Report Share Posted May 30, 2010 Happy with using heat to loosen the glue on a sapphire but is it possible on a plexy? It is possible, but not with heat. You have to grind it off and re polish the crystal. Quote Link to comment Share on other sites More sharing options...
FxrAndy Posted May 30, 2010 Author Report Share Posted May 30, 2010 I was just thinking about the plexy on your tudor to be honest as the gen is apparently hard to get would it be possible to reposition the loupe, do you use heat to loosen the glue and then re-glue with UV glue? Quote Link to comment Share on other sites More sharing options...
rosnik Posted May 30, 2010 Report Share Posted May 30, 2010 I removed the cyclops from Datejust plexy. I sanded out the Cyclops, then I polished the area with different fine grade sanding paper and finished with Xerapol . Quote Link to comment Share on other sites More sharing options...
jmb Posted May 30, 2010 Report Share Posted May 30, 2010 I always thought the plexi cyclope was molded into it. I would use a fine flat file to take off most of it then use progressively finer wet/dry paper on a firm rubber sanding block followed by polishing compound. You really don't need to go much finer than 600 or 800 but it needs to be worked down evenly on the rubber block to avoid optical distortions... Quote Link to comment Share on other sites More sharing options...
FxrAndy Posted May 30, 2010 Author Report Share Posted May 30, 2010 so it possible but only destructively Thanks Quote Link to comment Share on other sites More sharing options...
jmb Posted May 30, 2010 Report Share Posted May 30, 2010 "Destructive" sounds so barbaric, using the "aggressive stock removal method" sounds much more civilized! Quote Link to comment Share on other sites More sharing options...
ubiquitous Posted May 30, 2010 Report Share Posted May 30, 2010 I'm not sure if I still have that old Tudor crystal, but I'll check. FWIW, on that aftermarket 125 that I had, the cyclops was glued on, so removal was rather easy. Quote Link to comment Share on other sites More sharing options...
automatico Posted May 30, 2010 Report Share Posted May 30, 2010 I mounted an empty case (no movement or caseback) in a lathe and cut the magnifier off an aftmkt 127 crystal and it turned out fine. After the magnifier had been removed, I started with 600, then 1000, 1500, and finished with 2000 sandpaper (not much difference between 1500 and 2000). Final polishing with 'Simichrome' metal/plastic polish made it shine like a new crystal. I have removed a few magnifiers by sanding the magnifier off, sanding the top of the crystal, then polishing by hand...it's a bit of work but it usually turns out that you can not tell it had a magnifier. Being able to spin the crystal just makes the job go faster. Quote Link to comment Share on other sites More sharing options...
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