Rolex Submariner Date 1680 Mk4 Red Sub Faded Kissing 40 InlayThe rarest of kisses We keep saying it , finding really great vintage is getting harder and yet investing in these pieces makes a lot of sense in the current market. The Red Sub is an important piece for vintage Rolex fans, seen as a key piece in a serious collection. This example, however, is truly double barreled with an incredible faded Kissing 40 bezel insert and a killer Mk4 Red dial, with crisp red text and very nice off white lume on the hour