For the pleasure of the eyes: Girard Perregaux Railtimer.
There are a few watches which were made for the Rail Roads, such as Omega, Universal Genève, Longines, Ball, Zenith and... Girard Perrgegaux.
This Railtimer is one of the most beautiful ones.
Credit picture: Myself, credit watch: CC.
And if my memory serves me well, it has a superb manual winding movement!
A watch I am desperately hunting, as well as the Longines, by the way.
Forget the size: circa 34 / 35 mm, as once on the wrist, it wears much bigger.