toupee?

In fact during the production of DR. No, Sean had separate toupees depending on the action. One was a dry toupee, the other a wet toupee for his many underwater scenes, or scenes with wet hair during the Bond movies. Also, Sean had two sets of toupees. One black and one brown. So he had each a black and brown of each of the dry and wet toupees. Apparently in the films DN and GF Connery regularly switched back and forth from black to brown, and this is visible if you look closely. Also, Sean's hair was partially dyed in YOLT and DAF, and was dyed in NSNA, yet in half of the movie he didn't have it dyed. I think his toupee for NSNA was actually quite good and the one he wore in Thunderball was very similar to it. He looked great in Thunderball. His hairpiece in Goldfinger is a little too synthetic (especially noticeable in HD) and the ones he wore in YOLT and DAF were not up to par. Connery was actually in pretty good shape for NSNA considering he was 53. The fact that his hairpiece was such good quality made him look that much better. He was also very tan, just as he'd been in Thunderball so he really looked great for his age.

His toupee in the first 3/4 movies is hardly noticeable.... and its You Only Live Twice where it become very obvious.

The one he wears in Dimonds Are Forever was terrible, and the one he wears in NSNA is very Frank Sinatra-ish, that he clearly obvious that he is wearing one.