pureold from my limited knowledge there is no option ("box to tick") to have the Sub made without "the bubble". However, as with everything if you have enough money then it can be done.
I think they are very similar sizes but may be wrong...
when I try that on one of my DateJust´s.
I start with my cyclop remover kit.
Pull it up in my full size Bergeon case holder.
And start thr work.
Damn, Rolex have quality glue so I have to warm it up a bit.
Now I hope it will come off.
Ouups, not so good.
What do you think, did I have to change crystal? Or can it
be polished?
When you try that on a GMTIIc or the next Sub with antireflective cyclop so will
you get a antireflective window at the crystal where the cyclop was.