I've got a GMT-style bezel on my Amphibia Navy, had three or four bands on it so far. Dropped it on my bathroom floor a couple months back and now some days it auto winds, some days it doesn't but works okay if I manually wind it--aand now it keeps perfect time, it used to gain about 5 minutes every week. The Kommanderskie has kept perfect time. The crystal rear looks cool, where'd you get it?
I tried polishing the crystal on my Amphibia with Brasso and Flitz and had no luck--and it always worked on my old Seiko diver.