Yes, from Xing Patrick and Xing David.What is Xing? is he Xing Patrick owner of deep crystal? Who is prof Crystal? Does he have a website or a profile here on RWI? and what are Marks l ll and lll? Which Crystal is best and closest to genuine? Which Bezel insert is best and closest to genuine? And what is watch xtals? Can any one help if has answers ready? Sorry for my silly questions but I really don’t know and am extremely busy to navigate through the forum and find answers.
No website I guess but here on RWI and there’s a thread on the most current version (5). MK I-III are the bezel variations on the gen BLRO. The best watch crystals (xtals) are prof and deep.
There’s a lot of info here on the forum to browse, you’ll get a deeper understanding of the matters relatively quickly.