Скачать или смотреть T&N Hauptuhr mit Unruhgang

EDIT: 9th Aug 2020
You can find the correction of the stuff I say in this video here:    • Telefonbau & Normalzeit Litfaßsäulenuhr (H...  

Brand: Telefonbau & Normalzeit
Date: Ca. 1960-1970
Condition: Very good
Specials: This is a special kind of T&N master clock. Let's take a train station for example.
Usually a pendulum master clock was used for master-slave-clock-systems. It runs much more exact with the gravity as it's reference with the simple windup machanism T&N used. But every clock needs to get fixed and overhauled by a clockmaker from time to time. But you cannot simply stop all clocks at the station for 2 weeks or so until the pendulum clock has been fixed. So companies stored one, two or three of these portable master clocks with balance-wheel-excapement. The temporaily connected this one to the slave-clock-system while the pendulum clock is in the clockmaker's workshop. When the work is done, the reconnected the pendulum clock and put the balance-wheel-clock back into the storage. That's why - IF you find one of theses - they are in a very very good condition with very less wear.