Inside a Mechanical Flip Clock (Bosch UDW1)

Today I take a look inside a mechanical digital alarm clock (flip clock) UDW1 made by Bosch probably in 1970's and I explain how does it work. It runs on two C batteries. It has a buzzer with an electromagnet and contacts. It contains a mechanical spring-driven clock movement with an escapement, but it's wound by a DC motor every time the spring is running out.

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Видео Inside a Mechanical Flip Clock (Bosch UDW1) канала DiodeGoneWild