Hi all , I just got this Tissot Seastar that was in a drawer for 30+ years and I want to service it . I did a little research and found out that it is a front loader where I have to remove the crystal to remove the movement . I was able to remove the crystal and I read that there is a "C" ring I have to remove to get the movement out....so far , so good . Now I'm kinda stuck as I couldn't find any instruction past this point .  I read somewhere that there are no dial feet or case screws for t