Lots of folks think the 262khz inside a pretty case is a lost cause. I've googled it on and off for a decade, dreaming of a watertight diver or classic with the precisionist mvmt and water resistance. Every single thread and mention ends the same, it won't work if it does it'll be purely cosmetic. I saw a successful swap into a Nixon, congrats on the success- I wish I saw more technical details beyond "it fit". I've had several of these precisionists, chronos and ladies.... I've currently got the Sea King, thinking it would be the answer to my prayers. It is, it's just a hundred grams too heavy and several millimeters too bulky in every direction.
The movement itself in most is about the size of the 3v cell, mounted on dial w large plastic spacer. The chronographs and some of the special editions do have pretty movements, there's currently a "curv" with exhibition case back that has a new to me displayed UHF, bronzed like they used to and should be. I saw the new Jetstar, better size and design smh no water resistance or screw-down.
Got a few on the bay that are definitely not my style, price range 30-50. I've come to the conclusion because of the stem height and crown issues I'd be better off saving up for a spring drive. The Sea King is great, I wish I had a shrink ray. I'd be willing to sacrifice a movement, If anybody has done this or thinks they can. They've put every type of movement known to man in subs and 62mas + copies.. who will own the first 262khz custom diver (or successful job)
I hope someone does it, if they do please post. If they've seen it done please smack me with a link. If you're trying, please sound off on where you get stuck. Meanwhile I'll keep searching through couch cushions for coins - f300hz Seamaster/Grand Seiko jar.
IMHO a >42x14mm new UHF would sell like water in hell. End rant.
Health and happiness to everyone + family.