Daytona 4130 116520 Trouble

[AlbionJackal]

My 2014 116520 runs fine for 72 hours whether stationary, on a watch winder or on the wrist and then stops.

I handwind it 60 full revolutions to start off with but regardless of the amount of movement it gets, it still only lasts for an albeit impressive 72 hours.

I have three other older Rolex that I alternate between my wrist and a winder and I never need to wind any of them.

In short, has the "automatic" mechanism gone in the 116520? The mainspring and the power reserve seem OK but I just can't get the watch to go longer than 72 hours.

Obviously, I'm aware that it might need a full service as it is 7 years old but is there a short answer as to why the movement isn't being charged up, even slightly, by the rotor?

Any help would be gratefully received. Thanks.