The Streamliner Cylindrical Tourbillon Skeleton Alpine Limited Edition

H. Moser & Cie. presents the Streamliner Cylindrical Tourbillon Skeleton Alpine Limited Edition, the first fruit of its collaboration with Alpine Motorsports. For this timepiece symbolising the union between the two brands, H. Moser & Cie. wanted to create a design attuned to the aesthetic tastes of the stable’s F1 drivers and endurance racing team: fine engineering visible from every angle, a bold character, a touch of colour, and a comfortable strap which fits all wrists and is made from rubber for guaranteed durability. The result is a roaring success: an entirely chiselled three-dimensional sculptural watch which looks spectacular and is perfect for everyday wear thanks to its balanced proportions and 12 ATM water resistance.

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H. Moser & Cie. chose its flagship Streamliner collection for the first model in its partnership with Alpine Motorsport. It is a very fitting choice if you think of the high-speed trains that inspired both the name and the curves of this line. And, for the occasion, the Manufacture has removed all superfluous material, creating a fully skeletonised version that enables the movement to be admired from every angle. Embodying precision and exceptional engineering, the Streamliner Cylindrical Tourbillon Skeleton Alpine Limited Edition is an ode to transparency and three-dimensionality. At the heart of this timepiece is a one-minute flying tourbillon fitted with a cylindrical hairspring at 6 o’clock, showcasing the expertise of H. Moser & Cie.’s sister company, Precision Engineering AG. Invented in the 18th century, the cylindrical hairspring rises perpendicularly around the upper stem of the balance spindle. A frequent feature of marine chronometers at the time, it offered the advantage of being developed concentrically. The cylindrical hairspring – fitted with two Breguet overcoils attached at two points – reduces the friction of the pivots and improves the isochronism properties, all the more so if the hairspring is combined with a tourbillon, as is the case here. Nowadays, the cylindrical hairspring is challenging to produce because it requires expertise that has been lost. Each cylindrical hairspring is shaped by hand, which takes ten times as long as a traditional hairspring. H. Moser & Cie. loves to play with contrasts, and here, the brand has enjoyed combining traditional expertise with an ultra-modern watch.

At noon, the skeletonised main dial is topped with a slightly translucent domed dial, following the curve of the sapphire crystal and sporting the signature blue colour of H. Moser & Cie. and Alpine Motorsports in a bright and distinctive shade thanks to the clarity of the synthetic spinel used. Synthetic spinel is very high quality and difficult to machine, bringing intensity and added value to the watch. The Streamliner Cylindrical Tourbillon Skeleton Alpine Limited Edition is designed for discerning connoisseurs, thanks to its timeless elegance and understated sophistication. With no logo, it features only a discreet engraving of the brand names on the reverse side, underlining its exclusivity and pure minimalist look. The indices feature Super- Luminova®, while the inserts which top the hour and minute hands are made in Globolight®, guaranteeing perfect legibility even at night. As for the strap, H. Moser & Cie. has opted for a blue moulded rubber strap, which imitates the texture of a textile strap, prioritising comfort without compromising sophistication.

The automatic calibre HMC 811 is fully skeletonised on both the front and reverse sides, where a sizeable openworked gold rotor can be seen oscillating. The beauty of this movement is further enhanced by the lightness of the flying tourbillon, which twirls gracefully under the sapphire crystal.

This sleek timepiece is spectacular yet easy to wear thanks to its compact design. It is waterproof to 12 ATM and is perfect for sports and dressy occasions. The watch will be produced in a limited series of 100 pieces.

TECHNICAL SPECIFICATIONS – STREAMLINER CYLINDRICAL TOURBILLON SKELETON ALPINE LIMITED EDITION

Reference 6811-1200, fully skeletonised steel model, small domed dial in synthetic spinel, blue rubber strap, limited edition of 100 pieces.

Case
A slightly domed sapphire crystal top steel. Diameter: 42.3 mm
Height without sapphire crystal: 11.0 mm
Height with sapphire crystal: 14.0 mm. The screw-in crown is adorned with an engraved “M” see-through caseback
that is waterproof to 12 ATM.

Dial
Small domed dial in bright blue synthetic spinel at noon Skeletonised main dial
Indices in Super-LumiNova®
Hour and minute hands with Globolight® inserts.

Movement
Fully skeletonised HMC 811, automatic three-dimensional Manufacture calibre Diameter: 34.0 mm or 15 lignes/height: 5.5 mm (without hands or tourbillon) Frequency: 21,600 Vib/h
28 jewels. One hundred seventy-one components
Automatic bi-directional pawl winding system
Fully skeletonised gold oscillating weight
Power reserve: minimum 74 hours
Cylindrical hairspring with two Breguet overcoils
One-minute flying tourbillon at 6 o’clock with skeletonised bridge; hand-bevelled balance bridge Diamond bevelling
Main plate and bridges with anthracite finish.

Functions
Hours and minutes.

Strap/bracelet
Blue rubber strap
, Steel folding clasp, engraved with the Moser logo.