Ok perhaps a breaking uneducated guess. I did some mathematical calculations based upon Chrono24 numbers of availability and it turns out that the Rolex Submariner 14060M 4-liner with long F must have been less than 0.3% of Rolex’s / Rolaes / Rolex’ total output in 2007/'08. 
Rarer than hens’ teeth my friends, rarer than hens’ teeth... So in terms of collectibility this is a goldmine. How long will it take before collectors start realizing what a special watch this is (all in Rolex terms of course)?
