Watchman Clock – Mechanical
Our first watchman model, Model 30, was developed by placing a key on the
points to be checked on the guards' patrol route. When the guard arrives at
these checkpoints, the key's entery time is written to the watch's report as soon as the
fixed keys are in the clock. It is possible to learn from the paper strip
inside the clock about which points were checked and which check points are skipped. The
model reached over 200,000 users and broke the all-time record.