Hello, I am interested in purchasing an explorer I 39mm. The most important thing for me is the exterior, since the machinery, since it does not have a date window, allows me to mount any ETA of 28,800. I have heard that CF is the best option, but there is always the problem with its crystals. I don't know if any member has information on the latest versions of any factory and to see which is the best option.
Salutes
Salutes