This SD4000 will be a future classic as it combines the ideal size, all the modern tech (better bracelet with micro-adjustable buckle, ceramic bezel, etc...), and small production numbers as opposed to other models.
Most people chose the Sub (116610LN) as it was less expensive and more recognizable as a Rolex with the cyclops but between these 2, the clear winner is the SD4000. With it's short run of production, this reference will be a hit in the future 😁