![Derby Swissonic](https://static.fratello.com/2023/06/Derby-Swissonic-Jaz-1.jpg)
The construction of the Derby Swissonic is different than anything you have seen so far. It reminds you of an old bedside flip clock, doesn’t it? In reality, it is an ingenious plastic speedometer “drum-machine” powered by a 7-jewel transistorized electromagnetic module. From jumping hours to jumping minutes The Derby Swissonic might bring back fond […]
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