Performance and autonomy. The Cosmograph Daytona’s calibre 4131 – unveiled this year – features a cut-out oscillating weight and completely new finishes. It incorporates a chronograph function with a reduced number of components, further enhancing the movement’s reliability. It is engaged by a robust mechanism with a column wheel and vertical clutch, allowing an instantaneous and precise start. Calibre 4131 features the Chronergy escapement, combining high efficiency with great dependability. Its power reserve extends to about 72 hours.
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