I have the first sub you posted. I just got it last week from Mark and I must say I like it a lot. The second and the third ones you posted look the same, except the watcheden one has a ceramic bezel. They both have the newer clasp and have the shiny SS bracelet. I don't ever recall seeing a gen sub with that bracelet so they could be fantasy models.
Here are some pics of my sub with my crappy camera and bad photoshop skills:
Wristshot
All by itself
The clasp
The pearl
The lumeshot
With my LE marked M4 carbine
With my Kimber Tactical Custom