THIS MODEL WAS PRODUCED BETWEEN 2003 AND 2021.

The F.P.JOURNE DIVINE 36 MM has a mechanical movement with automatic winding, manufactured in 18K rose Gold, built on the exclusive Calibre Octa 1300.3. It has made its mark as the first automatic movement with a power reserve sufficient to insure precision timekeeping for over five days or 120 h (EFFECTIVE power reserve: 160 h ± 10 h). It is wound unidirectionally by the exclusive off-centre F.P.JOURNE ROTOR IN 22K 5N Gold, using A SELF-LOCKING BALL BEARING SYSTEM for unequalled efficiency. EVERY INFINITESIMAL MOVEMENT OF THE WRIST IS THUS MAXIMALLY EXPLOITED FOR AN OPTIMISED WINDING OF THE WATCH. THE VARIABLE INERTIA BALANCE WHEEL ENSURES AN OPTIMUM YIELD THAT OFFERS AN IRREPROACHABLE STABILITY.

FEATURING CENTRAL HOURS AND MINUTES HANDS, THE F.P.JOURNE AESTHETIC IS NONETHELESS RECOGNIZABLE WITH THE SUBSECONDS IN THE LOWER RIGHT-HAND SECTION, AND THE HOURS AND MINUTES CIRCLES SCREWED TO THE DIAL; A SPECIFICITY OF THE BRAND THAT HAS BEEN DULLY PATENTED. THIS WATCH INDICATES THE POWER RESERVE, RETROGRADE INDICATOR with a 120-hour scale, AND DISPLAYS THE MOON PHASES THANKS TO A METALLIC SAPPHIRE DISC WHICH MOVES ONE NOTCH FORWARD WHEN THE DATE CHANGES.

The moonphase complication offers a link to ancient times, when the full moon was the only source of light during the night and instrumental in navigation and the rise of civilization. While today we no longer depend on moonlight for navigation, the moonphase remains one of the most poetic of all complications, giving an alternative perspective of the passage of time.

A SPECIFIC WHEEL TRAIN ALLOWS PRECISE MOON PHASE INDICATIONS. ADJUSTING THE INDICATIONS IS DONE VIA THE CROWN, WHICH MAKES IT VERY EASY TO USE.

Calibre OCTA

A horological ideal

“The construction of the Octa calibre has less powerful ties with horological history than do the constant-force device or resonance models, but it symbolises an horological ideal of giving timekeepers the highest possible degree of precision and autonomy!

One can indeed note the fact that if church clocks are placed so high, in addition to enhancing visibility, it was mostly because it often took an entire month for the driving-weights to drop the length of their cords. Numerous systems were invented to increase the operating duration of timekeeping devices, meeting with various degrees of success. Given the small volume of a wristwatch, the size of the mainspring was automatically limited. Watchmakers therefore discovered the trick of adding an extra wheel to the customary geartrain in order to extend the duration of its development. Unfortunately, actually using this system, even with a stronger spring, led them to observe that the level of energy actually reaching the balance remained low. To compensate for this, they fitted a smaller balance using less energy, but which was also less stable. It is therefore not unusual to find that some watches able to run for several days display an extremely unpredictable level of precision.

This challenge was a powerful source of motivation! I then imagined that the best and the most obvious means of extending the running duration would be to extend the capacity of the spring development. The difficulty lay in integrating it on the same level as the gear-train and the escapement, given its stability: 1 metre and 1 millimetre thick. Thanks to the low torque of this spring, I could achieve extremely fast automatic winding (one and a half hours on a Chappuis cyclotest for over 5 days’ running).

Once the challenge of autonomy was thus successfully met with this automatic winding calibre, I knuckled down to the second challenge of managing to insert various complications into that same movement: power reserve with large date display, fly-back chronograph with large date display, retrograde annual calendar, etc… and of doing so while maintaining an identical size for all models.

Three years of research and development were required before this automatic winding movement that is unique in the world could be presented to the public.”

François-Paul Journe