Texture.

Seiko 5 automatic vs. Rolex Submariner.

I really like my new Seiko 5 very much. The face is very pretty as numbers and hands are quite elegant. And it did a great job on Elba, even if this model isn't waterproof and not suitable for water sports. But you don't have to be very careful in daily use.

But is it ok to like a watch that costs 80 Euros as much as a watch that costs 55 times more?

Yes, I guess it is.