{"id":651,"date":"2011-10-12T00:00:00","date_gmt":"2011-10-11T22:00:00","guid":{"rendered":"https:\/\/www.my-watchsite.com\/blog\/hublot-unveils-a-movement-inspired-by-the-antikythera-mechanism-an-astronomical-instrument-dates-from-antiquity-n1108\/"},"modified":"2011-10-12T00:00:00","modified_gmt":"2011-10-11T22:00:00","slug":"hublot-unveils-a-movement-inspired-by-the-antikythera-mechanism-an-astronomical-instrument-dates-from-antiquity-n1108","status":"publish","type":"post","link":"https:\/\/www.my-watchsite.com\/blog\/hublot-unveils-a-movement-inspired-by-the-antikythera-mechanism-an-astronomical-instrument-dates-from-antiquity-n1108\/","title":{"rendered":"Hublot unveils a movement inspired by the Antikythera mechanism : an ‘astronomical instrument’ dates from Antiquity"},"content":{"rendered":"
The Antikythera mechanism is one of the most mysterious objects in the history of civilisation. Nowadays it is renowned and studied in great detail by the scientific community, but when it was first discovered back in 1901, its great historical and technical value remained a mystery to be uncovered. The very idea of a “machine” created in Greco-Roman Antiquity did not enter the conceptual framework of the specialists of the time. Thereafter, obscurantist statements from non-scientists claimed that the artefacts from Antikythera were almost extraterrestrial in nature, which only served to muddy the waters.<\/div>\n
Toothed wheels eaten away by corrosion <\/strong><\/div>\n
<\/div>\n
The fragments of this “machine” were only analysed in-depth, taking a multidisciplinary approach, at the beginning of the 21st century. This work enabled the complexity of this extraordinary mechanism to be better understood. It is now clear that this “astronomical instrument” dates from the 2nd century BC (between 150 and 100 BC, with a more recent estimate dating it around 87 BC). Originally, it served as a “calculator”; its bronze gear trains were housed in a wooden box measuring approximately 33 cm x 18 cm and its case was sealed with two bronze plaques covered with inscriptions.<\/div>\n
Only 82 fragments of this “machine” still remain, some minuscule, all corroded: they are now forever protected in the National Archaeological Museum of Athens. A state-of-the-art tomography study (using an X-ray scanner) has provided images which can be used both scientifically and archaeologically, revealing numerous internal gear trains which are invisible to the naked eye, toothed wheels and new inscriptions hidden under the concretions: less than a quarter of the ancient Greek lettering of this text engraved on the “machine” has successfully been deciphered, but it is believed to be a sort of “instruction manual” for the mechanical calculator, also thought to show the movement of some major planets. The gears were driven by what is believed to be a side handwheel \u2013 but the possibility of an auxiliary hydraulic system has not been ruled out.<\/div>\n
On the trail of the great Archimedes\u2026<\/strong><\/div>\n
<\/div>\n
It is now accepted that this machine could have been designed in Rhodes, home to a community of astronomers including Hipparchus, as well as “mechanical engineers” such as Posidonios. A new hypothesis has been sketched out: this machine is probably closely linked to Syracuse, in Sicily, the city of the famous mathematical genius Archimedes, then a prosperous Corinthian colony. The Antikythera mechanism could have been designed there before the shipwreck which subsequently gave the island its name.<\/div>\n
According to current knowledge and based on the inscriptions which have been deciphered, the Antikythera mechanism could show the different cycles of the sun, the moon and (in all likelihood) the planets, relating these to the civil calendars of several large Greek cities (Corinth, Delphi or Olympia), and showing the dates of the different games in these cities\u2026. The study of the Antikythera mechanism \u2013 only very recently begun \u2013 is far from being finished, but it has given rise to a great wave of reinterpretation and reassessment of our knowledge of Antiquity. The reality of the mechanical knowledge held by these Greek scholars is a fantastic field to explore. It may even be that a record is found, in the texts or in the hidden reserves of museums, of other “machines” like the Antikythera mechanism.<\/div>\n
Mechanical gear trains which express a mathematical vision of the cosmos <\/strong><\/div>\n
<\/div>\n
The Antikythera mechanism is not a clock capable of showing the time: the ancient Greeks did not experience time as we do. A genuine cosmograph <\/em>(a machine to describe the cosmos), and more precisely a selenograph<\/em> (a machine to describe the movements of the Moon), the Antikythera mechanism was highly accurate and could show multiple astronomical cycles, including the Metonic cycle (named after the Greek astronomer Meton: it runs for 19 years, equal to 235 lunar months) or the Callippic cycle (named after the Greek astronomer Callippus: it runs for 76 years, equal to 940 lunar months or four Metonic cycles), correcting any inaccuracies. The Antikythera mechanism also showed the Saros cycle (223 lunar months covering just over 18 years), as well as the Exeligmos cycle (equivalent to three Saros cycles, or 54 years) which served especially to predict eclipses.<\/div>\n
The volume of astronomical data compiled to create a mathematical model able to summarise such cycles using mechanical gear trains is astonishing evidence of the conceptual abilities of the scholars and engineers of Antiquity. Given that a computer can generate data other than that entered into it, the Antikythera “machine” really is the first mechanical computer known to man. It was a good thousand years ahead of the first astronomical clocks created on a whole different scale in the main European cities in the Middle Ages.<\/div>\n
The first watch ever to be inspired by an archaeological finding <\/strong><\/div>\n
<\/div>\n
In 2008, the revelation by the scientific journal, Nature<\/em>, of tomographic analyses performed on the fragments of the machine certainly fuelled the imagination of some less conservative watchmakers. Mathias Buttet, current Director of Manufacturing and R&D at the Hublot manufacture, wanted to pay homage to the historical legacy which this first mechanical masterpiece represents. A technical tribute and a miniature recreation of the entire Antikythera mechanism as revealed by scientific analysis, crafted to fit perfectly on the wrist. It is also a homage to watchmaking, as it adds a new dimension to this astronomical calculator: that of a timepiece in its own right, capable of accurately measuring the time.<\/div>\n
It is the first time in the history of watches that a watchmaking development office has taken direct inspiration in this way from an “archaeological” mechanism dating back to Antiquity. It is also the first time that a watchmaking team has worked hand in hand with a team of scientists bringing together leading international figures in archaeology, epigraphy and historians of mechanical engineering.<\/div>\n
The watchmakers helped the archaeologists to better understand some gear trains and to confirm some hypotheses relating to the mechanics, while the scientists shared with the watchmakers technical solutions hitherto lost in Antiquity (in particular circular gears with non-linear cycles).<\/div>\n
The sheer ability of the mechanical engineers of Antiquity to create such efficient bronze gear trains opens up new horizons in their philosophical<\/em> relationships with technical progress and with the place of machines in their conception of the world \u2013 which can only in turn make us question our own relationship with modern-day machines and “gadgets”\u2026<\/div>\n
Faithful reproduction of the astronomical indications of the mechanism conceived by <\/strong>the ancient Greeks <\/strong><\/div>\n
<\/div>\n
The challenge facing Mathias Buttet’s team was to integrate a watchmaking movement in a miniaturised reinterpretation of the Antikythera mechanism, respecting the architecture of the original, and in particular its double-sided display. The team’s first task was to create in a few cubic centimetres what the mechanical engineers of Antiquity had developed over several hundreds of cubic centimetres, ensuring their creation was perfectly in keeping with the spirit of the original mechanism, both in terms of its accuracy and the legibility of its indications.<\/div>\n
The hours and minutes are displayed in the conventional manner, at the centre of the movement recreated by Hublot and presented for the first time at the Mus\u00e9e des Arts et M\u00e9tiers de Paris (the Museum of Arts and Crafts in Paris), as part of its exhibition entitled “Antikythera, the enigmatic machine which arose from the depths of time”. This watchmaking movement is regulated by a conventional tourbillon whose “cage” at 6 o’clock completes one revolution in one minute. The various known indications of the Antikythera “machine” have been faithfully reproduced on its modern-day counterpart, both on the front and on the back. The primary face of the movement shows: the calendar for the Panhellenic games (which designated those cities hosting the games), the Egyptian calendar (12 months each of 30 days, with the epagomenal, or additional, days), the position of the sun in the constellations of the Zodiac, the phases of the Moon (with a magnificent hand and aperture which shows the position of the Moon in the zodiac throughout the sidereal month), as well as the sidereal year. The back of the watchmaking movement shows the Callippic cycle, the Metonic cycle, the Saros cycle and the Exeligmos cycle.<\/div>\n
A modern micro-mechanical tribute to the mechanical engineers of Antiquity <\/strong><\/div>\n
<\/div>\n
This is the first time in the history of timepieces that these cycles – a legacy from Antiquity \u2013 have been studied, reproduced and displayed mechanically: to create some of these gears, the Hublot team had to develop a highly innovative concept of noncircular telescopic hands, capable of pointing to the spiral discs of varying diameters.<\/div>\n
The Hublot “Antikythera” watch housing this watchmaking movement, a concept devised in Antiquity, will be presented at the Baselworld watch show in Spring 2012. After that, the movement will be on show at a permanent exhibition which the Mus\u00e9e des Arts et M\u00e9tiers is dedicating to the Antikythera mechanism: a 2D and 3D film produced by Hublot will be projected at the exhibition to share with the public the whole story of this Antikythera “machine” from Antiquity to the modern day, creating a bridge between the knowledge of the mechanical engineers of Antiquity and the expertise of 21st century watchmakers.<\/div>\n
Hublot Antikythera Calibre 2033-CH01 <\/strong><\/div>\n
Movement functions <\/strong><\/div>\n
Hours, minutes <\/div>\n
Seconds via the tourbillon cage <\/div>\n
Flying tourbillon without ball bearing <\/div>\n
Manual winding <\/div>\n
View of dial <\/strong><\/div>\n
Egyptian Calendar<\/div>\n
Calendar for the Panhellenic games <\/div>\n
Zodiac <\/div>\n
Aperture showing moon <\/div>\n
Lunar phases <\/div>\n
Aperture showing sun <\/div>\n
View of bridges <\/strong><\/div>\n
Metonic cycle<\/div>\n
Saros cycle <\/div>\n
Callippic cycle <\/div>\n
Exeligmos cycle <\/div>\n
\n
<\/div>\n<\/div>\n
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    The Antikythera mechanism is one of the most mysterious objects in the history of civilisation. Nowadays it is renowned and studied in great detail by the scientific community, but when it was first discovered back in 1901, its great historical and technical value remained a mystery to be uncovered. 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