How might our timepieces have looked if the Earth
was a flat as pancake launched into space?
It’s a stupid question, but along the way we would have lost one of
the most beautiful horological conceits: the display of the terrestrial
globe, in relief or graphical form, at the centre of the dial.
How might our timepieces have looked if the Earth
was a flat as pancake launched into space?
It’s a stupid question, but along the way we would have lost one of
the most beautiful horological conceits: the display of the terrestrial
globe, in relief or graphical form, at the centre of the dial.
I
t is one way of reminding us of the relativity of time: terrestrial time
applies only to ourselves. Elsewhere, time is different. Why, somewhere
a few light-years away, there might be an hour that lasts 1,000 years! Depicting the globe is one of the most interesting forms of decorative
expression, poetic, philosophical and didactic at the same time. But it can also be a challenge of manufacturing skill and craftsmanship,
an exquisite exercise in miniaturised mechanics when the globe begins
to turn on itself to indicate the progression of night over the Earth.
And quite naturally, associated with this representation
of the globe is the regular dance of
universal time that turns with it.
Depicting the globe is one of the most interesting forms of decorative
expression, poetic, philosophical and didactic at the same time.
BOVET RÉCITAL 22 GRAND RÉCITAL
The three heavenly bodies that pace of our lives – the sun, Earth
and moon – are represented in cinematic form by a model
known as a tellurium-orrery. The sun is represented by the oneminute
flying tourbillon, the raised carriage bridge of which
evokes the sun’s fiery rays. An index fixed to the carriage wheel
indicates the seconds on a 1200 sector scaled to 20 seconds.
The imposing, hemispherical Earth, on which oceans, relief,
deserts, forests, clouds and air currents are meticulously represented,
rotates around its own axis and indicates the hours
over a natural cycle of 24 hours. Lastly, a spherical moon orbits
the Earth according to its exact synodic period of 29,53 days.
From 200,000 to 500,000$
GREUBEL FORSEY GMT-EARTH
With this new timepiece, GMT Earth, Robert Greubel and
Stephen Forsey took up the challenge of providing a complete
three-dimensional view of the terrestrial globe from the North
Pole to the South. This spatial 360° view was made possible by
rearranging the architecture of the movement and the case,
which has a side window in shaped sapphire, as well as a
sapphire crystal case back in three dimensions with a built-in
dome. Three time zones are visible simultaneously, and these
can be set to the nearest quarter of an hour. Moreover, on the
rear of the watch the 24 time zones, including summer and
winter times, complement the universal time indicated by the
terrestrial globe. More than 500,000$
JACOB & CO ASTRONOMIA BLACK CERAMIC
The Astronomia watches from Jacob & Co are astronomical first
and foremost by their price. And while the mechanical ingenuity
of their design is evident, more than anything they are a
poetic metaphor for the cosmic ballet, an incredible, spinning
show enclosed beneath the watch’s crystal. Above the celestial
dial, which accomplishes a full rotation in one sidereal year –
the time it takes the Earth to make one full rotation around the
sun in relation to the fixed stars – four satellites rotate together
in 20 minutes. The three-dimensional representation of the
terrestrial globe in lacquered titanium also rotates on its own
axis, as does that of the moon, represented by a cut diamond.
The third satellite carries the dial with the hours and minutes.
Driving it is a triple-axis gravitational tourbillon that completes
its rotation around the first axis in 60 seconds, around the
second in five minutes and right around the dial in 20 minutes.
More than 500,000 $
ARNOLD & SON GLOBETROTTER
Spanning the dial of the Globetrotter is a large bridge supporting
a terrestrial globe in 3D beneath a domed sapphire crystal.
This world-time globe is made from a piece of rounded brass
that has been chemically engraved then polished to represent
the different continents and oceans of the northern hemisphere.
The mountainous areas are sandblasted to create an
impression of depth, and the oceans are blue-lacquered. The
globe portrays the northern hemisphere seen from the North
Pole and swivels in coordination with a transparent 24-hour
ring that aligns with the red hour hand to indicate the time in
the second time zone. From 10,000 to 20,000$
MONTBLANC 1858 GEOSPHERE
Presented on the occasion of the 160th anniversary of Minerva,
the Montblanc 1858 Geosphere is a tribute to the heroes of
mountaineering. The world’s Seven Summits are indicated by
red dots on two rotating globes representing the two hemispheres.
The watch is equipped by a new world-time complication
developed by Montblanc’s watchmakers at Villeret: two
globes turn in opposite directions and effect one complete
rotation in 24 hours. Encircling the two globes is a graduated
scale with the 24 time zones, which also indicates day/
night by means of contrasting colours. This complication provides
an instinctive way of reading the time zones. The use of
SuperLumiNova® on the continents improves the watch’s nighttime
visibility and performance. From 5,000 to 10,000$
FRANCK MULLER VANGUARD WORLD TIMER GMT
At the centre of this watch sits a bas-relief map of the world.
Running all the way around this, two circles indicate the 24
hours as well as the 24 time zones, represented by iconic cities.
Local time is shown on the central hands, while an additional
hand, tipped by a red arrow, shows the home time. This imposing
automatic timepiece measuring 44mm by 53.7mm has a
power reserve of 42 hours. From 20,000 to 50,000$
JUNGHANS MEISTER MEGA
The map of the world featured on the Meister Mega indicates
the five reception zones of the radio-control signals by means
of five points and codes inscribed on its surface. Its new radiocontrolled
movement, the J101, guarantees absolute accuracy.
On three continents, it receives a radio signal that varies by only
0.006 seconds per million years and synchronises automatically
once a day. Outside the reception zone, the watch continues
to function with the precision of an extremely accurate quartz
movement that varies by no more than 8 seconds a year.
From 1,000 to 3,000$
All mentioned prices are indicative and correspond to price segment.