How can I take the Deville movement with no back case?

Honey voice · Nov 5, 2022

This is an Deville watch I found in a junkyard. How can I remove the dial?. It is very dangerous to pull the screw by force.

Ref: 5313 00798

STANDY · Nov 5, 2022

May be that the crown stem needs to be removed ?

Honey voice