I got offered a 216570 and hopefully going to check it out this weekend. The watch comes as a full set with boxes, papers. It was originally purchased in 2012, G serial. Sorry no pictures yet. I could not find any info on the question above so I thought I ask the experts. Any help is much appreciated.
Many thanks in advance!

 

based on the post below, I suspect there are a total of 12 full links and one 1/2 link...

http://www.rolexforums.com/showthread.php?t=322379

 

Thanks for that!
I'm going to check the watch out tomorrow and hoping to bring it home.

 

I can now confirm that mine has 11 full links and 1 half link. It may have had 12 full links when left the factory but this is a second hand watch and fits my wrist perfectly so I'm not worried about that extra link.

 

looks good! enjoy!!