at reach waterrock to reforge the gauldur amulet . Trying to figure combination. help ....

First door = Emerald dragon claw(on the pedestral once you entered Reachwater Rock)

Combination:

You also got the ivory dragon claw? There's a 2nd door.

If you do not have that claw:

Combination(won't work without Ivory Dragon claw):

PROTIP: in your inventory, zoom into your dragon claw. You can see the combination imprinted.