C 1969 GMT Master

[bbgun]

Good afternoon, experts.

I was poking around a local AD/jewelry store and came across this c. 1969 GMT Master in the consignment case.

Here's the information from the shop:
As requested, I pulled more information on the 1969 Stainless Steel Rolex GMT. The timepiece was recently serviced in June of this year, confirming bezel is original.
The service included a complete movement service, gasket and case refinishing, new acrylic oyster crystal, steel monobloc twinlock crown, steel oyster tube, pair of steel oyster springbars for case. No service was done on the bracelet as it is discontinued.

SN 1888***

The reported there service to be $1900
Asking price is $11000

these are the pics sent (I only took one of the dial when I was in the shop) and I can't seen any markings on the links. Obviously not all original given the RSC report.

This may not be the watch for me at this time, mostly looking for opinions for my own knowledge as there is so much to learn and so little time...