LS
1079
All very well said.
As an owner of a vintage Vacheron & Constantin with the 1003 movement I will agree that the piece is delicate. However, I don't wear it when it would not be appropriate.
As for winding.. I think it just takes a light touch. The winding is not different than other manual wind watches just smaller. I squeeze the crown with just enough pressure so that when the spring is wound the crown slips through my fingers and then I give it a few winds back.
As for size. I would say this is a matter of taste. But I find that ultra-thin watches can wear larger since they sit with such a low profile on the wrist. And at one point in time this size was quite fashionable. My Vacheron is 33mm including crown and I have ~18cm wrists. I don't consider it to be "too small." And it does not look like a lady's watch as the case shape is very masculine. My wife tried it on at one point and although it is the same size as her Nomos, it looked wrong.
I think that ultra-thin watches have a nice "cuff peek." It is an effect that diminishes as the size of the watch gets larger.

Thin.

Hello. I see you..

Comfortable under the sleeve.

Not too small.
And now, a Speedmaster for reference...