excellently preserved 16660 co branded Tiffany & CO Sea Dweller from 1985.  The dial and hands are flawless and have nice creamy patina and spidering through the surface.  The case has probably not been polished and is in excellent vintage condition with clear numbers.  The bezel is sharp and the insert has faded to a gun metal grey/blue hue.  The bracelet is original and the clasp appears to have been replaced at service.  The movement is running strong and keeping perfect time.  Comes with Rolex box and RSC card from a prior service.