A slightly new movement makes its debut in these pieces, the caliber 5900, which supplants the previous caliber 3120. This new movement is thinner at 3.9 mm (the 3120 measured 4.26 mm) and offers a higher frequency of 4 Hz (the 3120 offered 3 Hz). It also features 60 hours of power reserve. view details
A slightly new movement makes its debut in these pieces, the caliber 5900, which supplants the previous caliber 3120. This new movement is thinner at 3.9 mm (the 3120 measured 4.26 mm) and offers a higher frequency of 4 Hz (the 3120 offered 3 Hz). It also features 60 hours of power reserve.
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