>>2942106
You'll need to :
>1 wear finger cots/gloves
>2 unscrew the selector screw a little. Do NOT go all the way or you will detach the selector dial-side and if you are asking any of the things you are asking then you do not have half the tools necessary to deal with anything dial-side
>3 pull out the crown and winding stem
>4 remove the movement
>5 do whatever you need to do inside the case
>6 put the movement back into place
>7 replace the waterproofing gaskets after lubricating them with silicon grease
>8 put the crown and winding stem back into position. You will need to turn it in order for it to get into the right position. Don't force it too hard.
>9 screw the selector screw back in. Do not screw it too hard or it will break

As added steps I'd recommend
>1-1 wind the watch just a little and while you do it, you will see the click move as the ratchet wheel turns. Hold the click so it does not keep the ratchet wheel in place. You will feel the crown start turning between your fingers because the mainspring is unwinding. Let it turn, better yet help it turn backwards slowly until it stays immobile
>what's the point?
>it will keep the movement inert and you won't risk getting a moving hand caught into something and get bent