Dial is a mk1 dial in very nice condition.
I don't like to comment on the condition of the watch case when Few views are presented. See this thread for why:
http://www.rolexforums.com/showthrea...Things+learned
Like Springer said the date wheel for the period should be brushed silver and I can't tell from the pics whether it is or isn't brushed. The bracelet should likely have a VC code.
Hard to tell whether the crown and tube are correct. My Subs from 1978 don't have a gasket on the tube and have three dots on the crown. You can unscrew the crown and check. The insert is likely from a later date.