MONTBLANC – Star Legacy Metamorphosis Exo Tourbillon White Gold 50 mm Limited Edition 2021
First introduced in 2010, the patented Exo Tourbillon complication is a key pillar of the Montblanc watch collection. The idea was to position the large balance wheel, beating at the traditional low frequency of 18’000 oscillations, outside of the tourbillon’s rotating cage. This offered a spectacular view of the tourbillon in motion while improving the precision of the timepiece.
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During the Watches and Wonders digital exhibition, Montblanc unveiled its Metamorphosis and patented Exo Tourbillon in a new blue colour scheme. These key innovations marked a new chapter in the Montblanc fine watchmaking universe at the time of their release, becoming key watch pillars over the years and inspiring the development of future movements used in the Maison’s core collection.
Star Legacy Metamorphosis Limited Edition 8
The Montblanc Star Legacy Metamorphosis Limited Edition 8 in a sparkling blue colour literally transforms itself by revealing two different faces. It boasts a number of fine watchmaking complications, driven by the hand-crafted Manufacture calibre MB M67.60.
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The new Montblanc Star Legacy Metamorphosis Limited Edition 8 in blue combines the patented Exo Tourbillon, held in place by a sapphire crystal bridge, together with a new three-dimensional realistic moon display. This innovative timepiece is comprised of 718 components and was developed and produced entirely by Montblanc’s engineers and master watchmakers, and literally transforms itself by revealing two different faces.
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The globe is surrounded by a 24-hour scale and a day/night indication. At 12 o‘clock, the dial reveals the beauty of Montblanc‘s patented one-minute Exo Tourbillon, representing the sun at 12 o‘clock in the Northern Hemisphere. At six o‘clock, there is an astronomical moonphase complication showing the Moon’s exact position in the sky as viewed from Earth.
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The transformation between the two faces is highly complex and involves more than 320 individual components, all of them meticulously crafted by hand, and which move at the same time. In addition to this, the Exo Tourbillon construction contains over 100 components alone and the whole timepiece is composed of no less than 718 components, all traditionally hand-crafted at the Montblanc Manufacture in Villeret.
The mechanism is activated by a sliding lever on the side of the case (similar to that of a minute repeater mechanism) that is connected to a dial. It is comprised of a fixed part and moveable shutters, which can be opened and closed depending on the desired face.
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When the shutters are closed, the watch’s face displays a worldtime function at six o’clock in the form of a turning, domed Northern-Hemisphere globe surrounded by a 24-hour scale and a day/night indication. At 12 o’clock, the rhodium-coated balance wheel with blued hairspring and 18 screws, beats at the traditional frequency of 18,000 oscillations per hour.
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When its shutters are opened, the dial reveals the beauty of Montblanc’s patented one-minute Exo Tourbillon, held in place by a sapphire crystal bridge, and representing the sun at 12 o’clock. This was feasible thanks to the construction of the complication, which allows the balance wheel to be positioned outside of the cage and below the shutters.
A jumping date disc appears around the Exo Tourbillon. At six o’clock, a realistic, three-dimensional moon with its exact position in the sky, as viewed from Earth, turns constantly around the globe in a gyroscopic way, exactly as it would make its journey around the Earth. The moon is presented against a backdrop of aventurine that shimmers like a starry night sky. The astronomical moonphase complication is highly precise and only needs to be adjusted by one day every 122 years.
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The Montblanc Star Legacy Metamorphosis Limited Edition 8 is water resistant to 30 metres and is certified by the Montblanc Laboratory Test 500.
It is fitted with a new matching blue Sfumato alligator leather strap
coming from the Montblanc Pelletteria in Florence, Italy and equipped
with a triple folding clasp.
TECHINCAL SPECIFICATIONS
MONTBLANC – Star Legacy Metamorphosis Limited Edition 8
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Diameter = 45 mm; height = 12.87 mm
Number of components: 718
Number of rubies: 61
Power Reserve: Approx. 50 hours
Balance: Balance wheel, diameter = 14.5 mm; moment of inertia = 59 mgcm²
Frequency: 18,800 A/h (2.5 Hz)
Hairspring: Blued, with Phillips terminal curve
Plate: Rhodium-coated with circular graining
Bridges: Rhodium-coated with “Côtes de Genève”
Going train: Special toothing for more efficient power transmission
Closed face: worldtime with Northern Hemisphere globe surrounded by a 24-hour scale and day/night indication
Open face: one-minute patented Exo Tourbillon, Northern Hemisphere globe surrounded by the sky on an aventurine disc showing the stars and the realistic moon phases, date display at 12 o’clock
18 K white gold hour- and minute-hands, stainless steel second hand, filet sauté guilloché around the dial,
hand-engraved and hand-painted three-dimensional northern hemisphere globe showing the continents and oceans, aventurine disc representing the sky with the moon and stars
Edition - Only of ✅ 8 pieces
Certified by the Montblanc Performance Test 500
(* SuperLuminova® is not a trademark owned by Montblanc)
Retail price 250’000 Euros
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Press release - 2021
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