You'll need some basic equipment:
- Nice tweezers - my favorite is the DuMont Titanium SS 140
- Dial protector (bergeon has nice dial protector sheets)
- hand levers (removers), make sure they are of good quality. You can pm me if you have links and I can guide you.
- Hand pressers to put the hands back on
- Decent quality screwdriver set (~$60+ on aliexpress)
- Casing cushion or bergeon 4040
- Dial dots or stickers in case the dials are for different movements
- finger cots or nitrile gloves
1. Remove the movement from the watch. There are probably some tabs and the crown holding it in. Remove the crown via a lever that is to be lightly pressed with your tweezers tip.
2. You'll need to remove the hands by placing the dial protector on the dial first, then use the hand levers to remove them. Be very careful with the force you press on the dial as you can still scratch the dial even with the dial protector on.
3. Remove the dial. It can be glued on with dial dots, or put in via dial feet, and there is either a screw or lever holding the dial feet in place. Observe first, then act, in that order.
4. Place the new dial - might require cutting the dial feet and using the dial dots or stickers.
5. Place the hands. Ensure you set the time and when the date flips, that will be midnight. Place the hands on the watch at precisely twelve using the hand pressers you bought.
6. Carefully remove the stem, then reinsert the movement back in. Inser the stem, then screw the movement tabs in place..
Feeel free to ask more questions. Or you can send it to any of the watchmakers here.
Voila!