On arriving in La Chaux de Fond I went to the horological information centre at rue Jaquet-Droz 23. Here I sawa short film about La Chaux's role in history of watchmaking. I also received detailed information for a self-guided tour not only of La Chaux but also Le Locle.
So after a couple of hours walking the streets and seeing a variety of relevant buildings I returned to the station and took a train to Le Locle. This town is smaller but seemed to be more interesting and picturesque than its larger neighbour.
I travelled to La Chaux by train from Biel. Trains also travel from Neuchatel and continue to Le Locle. Both routes afford scenic views of lakes and mountains.