The vintage Rolex Submariner 1680 Red Sub, specifically the MK4 variant, is a prized timepiece coveted by collectors for its historical significance and distinct features. The "Red Sub" nickname originates from the eye-catching red "Submariner" text on the black dial, distinguishing it from subsequent models. Produced from the late '60s to the late '70s, this watch boasts a stainless steel case, luminescent hour markers, a date window, and a unidirectional rotating bezel. Each "Mark" denotes specific production variations, with subtle differences in details like the font used for the date or alterations in the crown and bracelet design, influencing its rarity and collector appeal. Its place in Rolex history, coupled with its unique aesthetics, contributes to its high desirability and value among watch enthusiasts.

Today's example comes to us in excellent all original vintage condition. The period correct MK4 dial shows excellent all matching pumpkin patina with matching tritium hands. The case is excellent still showing chamfers. The denim faded blue insert shows appropriate wear for its age. The PATEND PANEDING 9135 folded link oyster has 10 total links with Pat Pending dive extension, and its clasp is stamped 3.70. The case back is stamped 2.70. Here is an excellent and honest vintage beauty that we seldomly see available on the open market. Watch is running COSC and keeping time.