Baselworld/SIHH

GMT is usually used in the watch making world to designate watches with a second time

zone. The two time measurements, even though close, do not coincide as GMT is based on

terrestrial rotation, while UTC on atomic international time. UTC offers today a modern

view of time zone division, for the majority, in full hours, directly linked to the real

rotation of the earth and only slightly variable.

that faithfully takes us back to the modern standards of determining time zones in full

hours. Mechanically it indicates the different time periods linked with the earth’s

geographical positions, indicating summer and winter hour.

On the dial, the main hours are indicated by the blue hands, and linked to the calendar

indicating the main geographical time. The rose gold hand indicates the time zones on 24

hours, represented by the earth’s 24 time zones.

The time of the main geographical place is set by pushing the small secured pusher at

4h00. After having pulled the crown in position 2, the wearer is positions the second

geographical region on 0 for winter hour. The gold hand is automatically and

simultaneously positions itself at the corresponding time of this region. The +1 / -1

graduations’ purpose is to position the specific region for summer hour linked to the

geographical location of the user, depending if it’s positioned east or west of the chosen

zone.

The mechanical movement with automatic winding is manufactured in 18K rose gold, like

all F.P.Journe –Invenit et Fecit watch creations. It is constructed on the 1300.3 calibre,

and offers an additional complication to the Octa line, still in the same calibre dimensions.

The dial features off centre hours, minutes and seconds, a retrograde power reserve, a

large date, and for the first time, a dial with the earth divided in time zones. The passing

of the months from 28 to 31 days is done manually.

The OCTA UTC also features the 22K red gold exclusive off centre rotor that winds in one

direction only, thanks to a self-blocking ceramic ball bearing exclusive system. Every

infinitesimal movement is thus maximally exploited for an optimized winding of the watch.

In 2001, F.P.Journe presented the OCTA collection composed of mechanical wristwatches

with automatic winding featuring an exceptional power reserve of 5 days (120h), all with

the same case thickness regardless of the complication.

Unidirectional automatic winding

Correction of date in position 2, anti clockwise and

Correction of time in position 3

Instant jump calendar

Rotation of the earth by secured correction pusher at 4h

Number of jewels : 40

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

Small second at 4h30 / Earth dial divided in timezones

at 7h30 / winter summer hour / large date / power

reserve at 9h

Circular graining on 18K gold baseplate

Polished screw heads with chamfered slots

Chamfered and circular grained wheels, diamond-moulded

Pegs with polished rounded ends

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+/- 12heures

Date display in silver

Diameter 38 or 40 mm.

Height 10.6 mm

Cased up with strap 342