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SELF-DRIVEN DATE
![](https://e942b06304.clvaw-cdnwnd.com/1c5ddcc272b4456af133ee2cf7eabf6f/200000271-3b0d53b0d6/datum%2003.1%20web.png?ph=e942b06304)
The date double wheel system with its own power source is ring-shaped and allows it to be used as an additional complication to machines up to a base diameter of 26.8 mm.
Setting the date is done either by pressing the correction button or by holding it down when the fast-forward occurs.
The winding of the system is provided by the crown - in the opposite direction to the winding of the escapement. This system was first used in a watch by SERYN WATCHES.
It is a protected solution.