More Tudor help please...

Hi,

I have come accross this Tudor Sub 7016/0 on the bay. It has a iv68 caseback and a 17J 2483 movement. I know of at least three 7016 dial variants? I have another 7016/0 with the small rose dial, merc hands and gilt minute markers. I am interested in collecting all if possible. Grateful for you input. Sticking my neck on the line, it looks all good to me. I stand to be corrected. Look forward to your comments.

Cheers

Paul.