The Sistem51 is the first and only mechanical movement with fully automated assembly. The high-tech escapement has no index-assembly; the rate is set in Boncourt with a laser, making the manual rate adjustments normally required by a mechanical watch unnecessary. The movement, which features a 90-hour power reserve, is made of ARCAP, an alloy of copper, nickel and zinc with exceptional anti-magnetic qualities. All components are hermetically sealed within the case: no moisture, dust or foreign elements can interfere with performance, assuring a very long life and sustained accuracy over time (+/- 7 seconds per day).
The Swatch Sistem51 features an automatic (self-winding) mechanical movement made from a total of 51 components. The components form five separate modules, which are welded into a single unit centered on a single screw. Conventional mechanical watch movements have at least twice as many components; some of the more complicated, high-end models have more than six hundred, assembled by hand over weeks or months by master watchmakers in their ateliers.
Case: 42 mm
Modules: Plate with wheel train, gear train, hand fitting and date / Mechanical module / Escapement module / Automatic device module / Oscillating weight
Diameter: 30.00 mm
Height: 4.80 mm
Display: Hours, minutes, central seconds hand, date window
Functions: Automatic winding, 90 hour power reserve
Frequency: 21.600 A/h (= 3 Hz)
Rate precision: +/- 7 seconds/day; set by laser at the factory
Design: Printable surfaces, including oscillating weight and modules
Assembly: Under clean-room conditions on a fully automated, 20 meter long assembly line
Price: 150 Swiss Francs or 130 Euro
>>> The four Swatch Sistem51 available so far >>>