Swatch caliber Sistem51 ND
Sistem51 ND description
The Sistem51 is a mechanical movement by Swatch that is made up of 51 parts and that is completely assembled without any human intervention. The movement is held together by one single screw - plus a few welds. The 'finish' is different from version to version, based off the design of the watch it is powering.
[placeholder for watches using the Sistem51 without using its date function]