All 16710's are identical; the model number is 16710......... there is no suffix number on the watch itself..
The only place that you will ever see the suffix (A for black/red, B for blue/red, N for black) is with the original paperwork... but, it doesn't matter. You can have any color insert affixed to our 16710. Some AD's are clueless though, so don't confuse them by saying that it originally had such and such. They are brainwashed that all Rolex watches must "remain as built"; and that is not the case...
