ps. If I can't find an original. What Calibers are compatible with the 478 so I might try and fit a set of similar ones...

Hi all, Newbie here. I've just picked up a JLC amongst an eBay lot of old watches. It's a mid 50's sword hand mid size stainless steel with a cal 478 movement. Missing however is the second hand and the crown. Does anyone know where I might source these- eBay isn't great with this cal.? what part nu...