Hi AJ,
the new model, listening to reference 25835, is basically using the same design elements.
But it´s thinner (which makes it more elegant) and the dial is curved in the same curvature as the case. The same goes for the hands, which are curved either.
This may explain:

The old reference 25800 then had a "plain" dial and hands which are not curved, which i think is particularly visible from the picture you´ve posted.
Cheers,
Peter