...as I told you in my response thru the eBay msg ctr, the 7206 was available with either 58, 64, 65, 75, 76, 79, 80, and 82 inclusively.
...as to the Rolex USA made bands, they did NOT have any reference number whatsoever. It simpl is the way it is.
...the Rolex USA 20mm bands are basically interchangeable among ALL the 20mm Rollies with the EXCEPTION of the D/D.
...likewise, the Swiss Made 7206 20mm ends above are interchangeable througout all the 20mm Rollies, again with the EXCEPTION of the D/D.
...now we come to the "politically correct" usage/wear. You would need to determine what your watch ORIGINALY came with and go from there. If you do not care about this, then go for what your budget can stand and what you want.
...hope this helps.
Stan.