Octa Réserve de Marche
OCTA Divine 36 mm
OCTA Lune
Octa Chronographe
Octa Calendrier
Chronomètre à Résonance
Tourbillon Souverain
Sonnerie Souveraine
Brass Collection

OCTA Divine 36 mm CALIBRE 1300 FP Journe FP Journe

Platinum case
Diameter: 36 mm
Overall height: 10.6 mm
Dial: 18K yellow Gold and whitened Silver
Hands: blued Steel
Finishing
Platinum case
Diameter: 36 mm
Overall height: 10.6 mm
Dial: 18K yellow Gold and whitened Silver
Hands: blued Steel
CALIBRE 1300

Technical Specifications

Indications :

    Centre hours and minutes.
    Small seconds at 4:30.
    Large date.
    Power reserve indicator at 7:30.
    Moon phase.

Dimensions :
  • Overall diameter of mvt : 30.80 mm
  • Casing-up diameter of mvt : 30.40 mm
  • Overall height of mvt : 5.70 mm
  • Height of winding system : 3.00 mm
  • Diameter of stem thread : S0.90 mm
Caracteristics :

    In-line lever escapement, 15 tooth wheel.
    Balance with 4 inertia weights.
    Flat Anachron microflamed spring.
    Mobile stud holder.
    Free sprung balance.
    Nivatronic laser welded.
    Pinned GE stud.
    3 positions crown.
    Slipping mainspring.
    Off centre winding rotor.

Auto winding :

    274 anti clockwise revolutions / 24 hours

Main features :

    Bi-directionnal automatic winding.
    Date setting by turning crown in opposit ways (position 2).
    Time setting with crown in position 3.
    Instantaneous date change.

Frequency :

    21600 VPH, 3 Hz

Balance :
  • Inertia : 10.10 mgcm2
  • Angle of lift : 52°
Amplitude :
  • 0h dial up : 280°
  • 120h dial up : 220°
Power reserve :

    160 +/- 12 hours

Number of jewels :

    30

Finishing :

    High grade.
    Circular stripes on the bridges.
    Baseplate partly circular grained.
    Polished screw heads with chamfered slots.
    Pegs with polished rounded ends.
    Steelwork with polished chamfers
    and straight graining.

Number of components :
  • Movement : 225
  • Cased on leather strap : 262

At the heart of the movement
fpjourne

Technical description


Other views
F.P.Journe

About

This watch was produced between 2003 and 2005

A worthy heir to the Octa collection, the Octa Divine (36mm) is the first model by F.P. Journe -Invenit et Fecit- to be set with diamonds and to feature central hours and minutes hands.

Nonetheless, the instantly recognisable F.P. Journe aesthetic elegance has been retained, with the sub-seconds dial in the lower right-hand section, and the hours and minutes sub-dials screwed to the dial, a patented brand-specific feature.

This watch indicates the power reserve and displays the moon phases thanks to a metallic sapphire disc which moves one notch forward when the date changes.

Testimony
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

Technical Specifications

Indications :

    Centre hours and minutes.
    Small seconds at 4:30.
    Large date.
    Power reserve indicator at 7:30.
    Moon phase.

Dimensions :
  • Overall diameter of mvt : 30.80 mm
  • Casing-up diameter of mvt : 30.40 mm
  • Overall height of mvt : 5.70 mm
  • Height of winding system : 3.00 mm
  • Diameter of stem thread : S0.90 mm
Caracteristics :

    In-line lever escapement, 15 tooth wheel.
    Balance with 4 inertia weights.
    Flat Anachron microflamed spring.
    Mobile stud holder.
    Free sprung balance.
    Nivatronic laser welded.
    Pinned GE stud.
    3 positions crown.
    Slipping mainspring.
    Off centre winding rotor.

Auto winding :

    274 anti clockwise revolutions / 24 hours

Main features :

    Bi-directionnal automatic winding.
    Date setting by turning crown in opposit ways (position 2).
    Time setting with crown in position 3.
    Instantaneous date change.

Frequency :

    21600 VPH, 3 Hz

Balance :
  • Inertia : 10.10 mgcm2
  • Angle of lift : 52°
Amplitude :
  • 0h dial up : 280°
  • 120h dial up : 220°
Power reserve :

    160 +/- 12 hours

Number of jewels :

    30

Finishing :

    High grade.
    Circular stripes on the bridges.
    Baseplate partly circular grained.
    Polished screw heads with chamfered slots.
    Pegs with polished rounded ends.
    Steelwork with polished chamfers
    and straight graining.

Number of components :
  • Movement : 225
  • Cased on leather strap : 262

At the heart of the movement
fpjourne

Technical description