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Once the winding stops, the mainspring slowly uncoils, which in turn sets the entire ensemble of gears into motion and this starts the watch. When the mainspring is wound through the crown, it coils upon itself and tightens, storing up energy. To explain the power reserve and its indicator simply, a mechanical watch is powered by a series gears and springs intricately joined together. The remarkable movement is the P.2003 calibre – Panerai’s first automatic movement that’s manufactured completely in house. Like it’s namesake, the watch was capable of storing an astonishing 240 hours worth of power reserve, taking it up 2 notches over its ‘8 Days’ predecessors.Ī few days ago, Officine Panerai released a video showing the inner workings which made the 10 day power reserve a reality. This is not exactly recent the Panerai Luminor 1950 10 Days GMT Automatic Acciaio was released in mid 2014.
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