Rolex Submariner Red 1680 MK6 Circa 1973, excellent case that has recently been polished and shows extremely light stretch from use, the bezel insert is also excellent and has faded to a very dark navy blue hue, excellent original MK6 with creamy patina and matching hands, the 11 link USA rivet bracelet is excellent showing no stretch at all, the clasp is stamped 1.73, no service history, perfect working conditions