- 20/4/17
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As many of you may know, there is a known problem with the XF crystal, the x2 AR with a blue thit on it that you can see from a certain angle.
My story: I got a prof ARx2 crystal and found it has a blue tint like the XF stock crystal, which I don't like. x2AR is more pleasing to the eyes but not genlike as the gen has only one side of AR on it.
Yesterday I got an unexpected desk dive which left the crystal AR with a small ding on the edge. I can't stand it so I bought some sandpapers to hand polish it.
To remove the crystal AR, you will need: sandpapers #3000, #5000, and #7000. Get the three of them at once for $5. Get some soft napkins and some water as well before you start.
For FC and ceramic divers, there is no need to dissect the whole watch as the bezel has a very high surface hardness and the sandpapers we bought are of finer texture.
Use the #7000 first. Put your watch upside down on it with the crystal touching the sandpaper, and move fast up and down. After 30 seconds, you can see a lot of small scratches on the AR and then the blue hue starting to fade.
After one minute of friction, the whole crystal has no blue tint at all, and you now have an unfinished crystal. You can see there is a circle of remains with blue tint of the AR on edge of the crystal.
Next, cut the #3000 sandpaper into small pieces that you can hold firmly with your two fingers. Use one small piece of #3000 to treat one small area of the remains. Move your fingers fast repeatedly.
Then, move to next area. Remember to do this one area by one area in straight line and don't move your fingers in circles. Apply water and remove the remains with water after you finish each area.
Finish all the areas, and then use #5000 to refine the result.
then use #7000 to refine at the end. There is now without a trace of blue on the crystal while there is full AR inside (Genlike 1xAR). The end result I achieved has been perfect and it is quite simple and straightforward.
I will post pictures if you guys are interested. I can't use picr.me somehow.
My story: I got a prof ARx2 crystal and found it has a blue tint like the XF stock crystal, which I don't like. x2AR is more pleasing to the eyes but not genlike as the gen has only one side of AR on it.
Yesterday I got an unexpected desk dive which left the crystal AR with a small ding on the edge. I can't stand it so I bought some sandpapers to hand polish it.
To remove the crystal AR, you will need: sandpapers #3000, #5000, and #7000. Get the three of them at once for $5. Get some soft napkins and some water as well before you start.
For FC and ceramic divers, there is no need to dissect the whole watch as the bezel has a very high surface hardness and the sandpapers we bought are of finer texture.
Use the #7000 first. Put your watch upside down on it with the crystal touching the sandpaper, and move fast up and down. After 30 seconds, you can see a lot of small scratches on the AR and then the blue hue starting to fade.
After one minute of friction, the whole crystal has no blue tint at all, and you now have an unfinished crystal. You can see there is a circle of remains with blue tint of the AR on edge of the crystal.
Next, cut the #3000 sandpaper into small pieces that you can hold firmly with your two fingers. Use one small piece of #3000 to treat one small area of the remains. Move your fingers fast repeatedly.
Then, move to next area. Remember to do this one area by one area in straight line and don't move your fingers in circles. Apply water and remove the remains with water after you finish each area.
Finish all the areas, and then use #5000 to refine the result.
then use #7000 to refine at the end. There is now without a trace of blue on the crystal while there is full AR inside (Genlike 1xAR). The end result I achieved has been perfect and it is quite simple and straightforward.
I will post pictures if you guys are interested. I can't use picr.me somehow.
