Page 13 of Collection Octa by F.P.Journe

octa chronographe with the octa chronographe françois-paul journe is revolutionising the classical conception of a chronograph integrated within the octa automatic winding calibre measuring 30 mm in diameter and 5,7 mm in thickness the chronograph is housed in a space just 1 mm thick this space is also occupied by the concentric large date display discs to achieve such a performance françoispaul journe imagined flattening the usual column wheel to transform it into a cam wheel this means it is the profiled rim instead of the column which actions the chronograph levers a single sliding lever returns the chronograph seconds and minutes to zero by disengaging the brakes at the precise moment when it hits the specially profiled return-to-zero parts these two innovations make it possible to reduce the mechanism to three levels in this more compact version it gives rise to a sturdy movement ensuring long-term reliability it is fitted with fly-back and return-to-zero functions as well as a 60-minute counter the date is shown on the dial by large-sized separate numerals according to a patented display mode the guilloché silver hour minute and small seconds subdials are screwed to the 18-carat gold watch face 56

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