Some answers...
To remove the movement, you need to release the stem first. Those screws you pointed out are dial feet screws. The red arrows point to where there should be movement screws. Mine didn't have them either. No biggie. Just gently pry the movement out carefully. The movement fits snugly into the movement ring, so take your time.
V.1 is more accurate. The working Power Reserve on V.2 is in the wrong place by a few mm. The dial markers reflect this error, too. Stick with V.1 if you want an accurate dial. If you want real power reserve, go for V.2 I guess.
And get a new strap as the rep strap is cheap, sticky and stinks like plastic.
Cheers