Rolex Jubille Bracelet/Clasp

[lukestafford77]

I have been looking at a friend of mines watch - as he knows I have an interest in Rolex watches.

I told them strait away that the watch dial and bezel are after market, I understand that he bought the watch new as such as an "Upgrade".

I am however struggling to authenticate the bracelet/clasp for the following reasons:

The information regarding the second coronet sometimes found on a Rolex clasp is very confusing - could it be there or can't it?

I have also read that the clasp should have 7 as opposed to 6 self adjustment holes.

Any information or enlightenment would be greatly appreciated!

I have uploaded photos for you guys.

The watch is a 69174.

T serial number.