F.P.Journe’s Octa UTC is a GMT or two time zone watch that incorporates a patented system to indicate the second time zone using both a traditional second hour hand and an unconventional graphical representation of the Earth showing the 24 standard, full-hour time zones and taking into account summer and winter time.
On the dial, the blue hour and minute hands (and the date) indicate the owner’s local time. Once the local time is set, the owner positions the second geographical region – indicated by the colorful globe – on “0” for winter hour. The gold hand, which makes one complete rotation every 24 hours, automatically positions itself at the corresponding time for this region. The +1 /-1 graduation positions the specific region for summer hour linked to the geographical location of the user, depending if it is positioned east or west of the chosen zone.
The Octa UTC is available in platinum or 18K red gold, and in 38 or 40mm diameters.
The automatic-winding movement is manufactured in 18K rose gold, as are all F.P.Journe creations. It is constructed on the 1300.3 caliber without changing the caliber’s dimensions. Adjusting the date from 28 to 31 is done manually. All Octa timepieces offer a 5 day power reserve.
Complete technical specifications appear below the images, which may be enlarged with a click.
Technical Specifications – OCTA UTC
Movement : Automatic Calibre FPJ 1300-3 in 18K rose gold (4N)
Unidirectional automatic winding
Off-center 22K gold guilloché winding rotor
Three position crown: Correction of 24h time zones in position 2, clockwise
Correction of date in position 2, anti-clockwise
Correction of time in position 3
Instant jump calendar
Rotation of the earth by secured correction pusher at 4:00
Number of jewels: 40
Dimensions of the movement: Overall diameter: 30.80 mm
Casing-up diameter: 30.40 mm
Overall height: 5.85 mm
Height of winding stem: 3.00 mm
Diameter of stem thread: S0.90 mm
Indications: Off-center hours and minutes, off-center timezones, small second at 4:30, Earth dial divided in timezones at 7:30, winter/summer hour, large date, power reserve at 9:00.
Decoration : Circular Côtes de Genève on 18K gold bridges
Circular graining on 18K gold baseplate
Polished screw heads with chamfered slots
Chamfered and circular grained wheels, diamond-molded pegs with polished rounded ends
Escapement: 15 tooth
Balance: Four adjustable inertia weights
Anachron free-sprung flat balance spring
Mobile stud holder
Nivatronic laser soldered balance spring
Pinned GE stud
Frequency : 21’600 Alt/h, 3 Hz
Inertia : 10.10 mgcm2
Angle of lift : 52°
Amplitude : 0 h à plat : > 300°
24 h à plat : > 280°
Autonomy: 120 hours +/- 12 hours
Dial: White or red gold
Hours and minutes, small second in silvered guilloché
Date display in silver
Case: Platinum or red 18K gold
Diameter: 38 or 40 mm
Number of parts : Movement without dial 301
Cased-up with strap: 342
Winding Speed: 274 anti clock-wise rotations per 24 hours