I had a upo which I loved, but the crown-tube stripped. I replaced this with a gen crown/tube and then a month or so later the movement died. I tried a repair but it was beyond help (or my help anyway)
I've not worn it since (obviously) but am starting to miss that beasty of a watch and thought about buying another. Then last night I thought, wouldn't it be better to spend the money on rebuilding what I have with cheif AR, a new movement and gen dial/hands?!
anyway, im a bit stuck re: movement.. I believe the 45.5 UPO had a 2836-2 movement but I dont know what height the drive components of the movement need to be (H4 maybe?). Also not sure whether there is a better movement I should go after which would be a relatively pain-free replacement (i don't really want to have to make custom movement holders, dial spacer rings, etc. to correct stem position and things)
Anyway, if anyones upgraded the movement in their UPO, or replaced and can give advice on hand wheel heights, datewheel mods, or anything else i should consider before i start collecting parts, i'd be really grateful..
b