Is the train at the point of departure or is there still time to get a quick cup of coffee? This original, double-sided station clock will tell you! History station clocks. These double-sided station clocks originate from Utrecht Centraal train station where they hung next to the centrally “centrale treinaanwijzers” (abbreviated CTAs). After the renovation of the central station, the clocks were replaced by new, more modern specimens. However, before these vintage station clocks ended up with us, they served for years as decoration at various major festivals. Practical info: The double-sided station clocks are made of aluminum and have a tough and robust appearance. The standard colour is blue, but they can be repainted if you wish. The clocks have their original working slave-movement. Placement of mother pulse generator is possible at an additional cost.