[RPKESQ]

Zenith used to be top tier, and then fell off. The new owners (3 years ago if memory is correct) have pushed them back in the proper direction. They are beautiful watches again.

The model in your first picture is simple with a power reserve, seconds and date indicator.

The second picture has a sublime dial design with seconds and date indication. Nice. The third has chronograph functions, moon phase, date day and month indications.

In terms of complications the third has the most (and Zenith initially made their name with chronographs). But for pure ease of use and elegance # 1 would be my choice.

Note: if you have oily skin the leather band will only last about 2 to 4 months before getting pretty grotty. Metal bands would be your best choice then, with leather for dress up.