You'll never know for sure if the bracelet was original to it or not as these watches were supplied with BORs or leather bands at point of sale. One endlink looks more off than the other, perhaps a replacement? My Seamaster 2767-5 below is a similar shape case to yours and takes 11 endlinks - good luck finding those on their own.
Personally I like non-padded tan leather bands but that's just my taste. It comes down to what you like.
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