7753 one
Pros:
- no sunken datewheel
- AR
- Button on the side to change date, prevents messing up with the movement when changing it via the crown
- Generally a bit more reliable than a7750
Cons:
- A little bit more expensive
- No many varieties available (im thinking of getting both versions, and swapping stuff i like onto the 7753 version
- Running second hand has been said to be 'loose', doesn't affect timekeeping or anything, mainly a cosmetic thing. More has been said about it in the Movements subsection under 7750/7753