Ok to put it better, I get hot and the watch gets tight, if I put another link in then it swings around my wrist when I am cold.
Mine was like this. Put half a link in
Its amazing how much your wrists swell/shrink when hot/cold. I can go from my watch imprinting on my wrist sometimes (if I sleep wearing it) to almost being able to rotate it right around my wrist
It would be good if the dive extension size could be changed or something similar on seamasters