The easiest way to answer this question would be to ask the delivery company whether a return within 10 days is possible if you are not satisfied. This service is offered by most modern and prompt mail-order companies these days. Good luck.

I do not know where you can test the watch.

Not to my knowledge. I have a men's watch with a white dial and steel bracelet and I am very happy with it. One of my friends has the ladies' model with a black dial and I find that the hands (watch and pedometer) are harder to read on the one where everything is black.