The pseudo analogue clock

I like electromechanical measuring instruments, so I have plenty of them around. Right at the moment when accidentally found three identical pieces an idea arose in my mind: why not build a clock based on them? That was how I began thinking of it, and after a few weekends worth of development it became a reality.
I call it pseudo analogue, as of course it is digital under the hood. It is built on a Renesas RL78 evaluation board. The exact time information comes from a GPS receiver module.

The time information is processed, then applied to the Deprez instruments as PWM signal. The nonlinearity of the instruments is compensated with individually registered calibration tables for each instrument. The alarm uses a solenoid hammer which beats the inside of the box more and more aggressively, so it is almost impossible to stay asleep.

Usual functions such as alarm and stopwatch were also added, together with a profile instrument for displaying the working modes.

For a faster return from the end to the start position a reverse polarity pulse is applied.