Auctions
Timekeepers Club / March 12, 2025

H. Moser & Cie. Streamliner Cylindrical Tourbillon Skeleton Alpine Unique Piece

H. Moser & Cie. has crafted the Streamliner Cylindrical Tourbillon Skeleton Alpine Unique Piece, which will be auctioned to benefit the private non-profit foundation AQUA PEARLS, established by BWT (Best Water Technology) and its CEO Andreas Weissenbacher in 2016, supporting its mission to provide access to clean drinking water worldwide. BWT drives positive change beyond the racetrack. In a world where access to clean water should be a fundamental right, this shared initiative emphasizes the responsibility to act, not just observe.

Following the success of its Streamliner Cylindrical Tourbillon Skeleton Alpine Limited Edition Pink Livery, H. Moser & Cie. has crafted a unique piece inspired by this series, with an exclusive blue DLC treatment on its case—a hue inspired by the purity of water. Sporting the colours of both BWT Alpine Formula One Team and BWT, the Streamliner Cylindrical Tourbillon Skeleton Alpine Unique Piece mixes blue and pink accents. At 12 o'clock, the skeletonised main dial is topped with a small domed dial in corundum, following the curve of the sapphire crystal and sporting the signature pink colour of BWT, a bright and distinctive shade enhanced by the clarity of the corundum, or ruby, used. 

Emanating timeless elegance, this model has no logo, emphasising its aesthetic purity and exclusivity. The indices feature Super-Luminova®, while the inserts above the blued hour and minute hands are made of Globolight®, for perfect legibility even at night. As for the strap, H. Moser & Cie. has opted for a pink rubber. The beauty of the automatic calibre HMC 811 - fully skeletonised on both the front and on the reverse side - is accentuated by the lightness of the one-minute flying tourbillon fitted with a blue cage bridge matching the hands, and a cylindrical balance-spring which spins at 6 o'clock.

This unique piece will be auctioned, with all proceeds donated to BWT’s AQUA PEARLS Foundation. As Europe’s leading water technology company, BWT is committed to improving the lives of disadvantaged communities while promoting a healthier planet. At the heart of this mission is the AQUA PEARLS Foundation, BWT’s charitable initiative dedicated to providing sustainable access to drinking water to those in need. The foundation focuses on projects such as building wells, offering children a perspective, and supporting education in terms of sustainability. By ensuring access to clean drinking water, AQUA PEARLS not only improves lives but also fosters global environmental responsibility.

BWT is built on sustainability, social responsibility, and the responsible management of natural resources – driving meaningful change and creating a better world for future generations. With its vision “Change the World – sip by sip”, BWT combines innovation and sustainability to create cutting-edge water treatment solutions for private households, businesses, industry, hotels, and municipalities, redefining how we experience water. Every product and technology is designed to conserve resources, minimize energy consumption, and provide access to high-quality water without compromise. Committed to eliminating the use of single-use plastic and glass bottles, BWT filters local water and enriches it with valuable minerals such as magnesium, zinc, and silicate. This not only promotes a healthier lifestyle but also reduces the need for transporting, storing, and disposing of bottled water. BWT – For You and Planet Blue.

A shared commitment between H. Moser & Cie. and BWT

H. Moser & Cie., renowned for its minimalist and disruptive approach, fully aligns with BWT’s core values. By supporting this mission, the watchmaker reinforces its desire to actively contribute to building a more sustainable future. The unique watch created for this occasion symbolizes this commitment: an innovative design evoking both high performance and harmony with nature. 

At H. Moser & Cie., we value uniqueness and boldness. By collaborating with BWT Alpine Formula One Team and BWT, we wanted to create a watch that is not only a technical feat but also a true ambassador for an essential cause. This unique piece embodies our determination to drive meaningful change,” says Edouard Meylan, H. Moser & Cie. CEO.

This initiative demonstrates that when industries come together for a shared cause, they can create real, sustainable change. We are deeply grateful to H. Moser & Cie. for embracing this mission with true PINK attitude – a bold commitment to making a difference. Through their exceptional craftsmanship and dedication, they are not only creating an extraordinary timepiece but also supporting the AQUA PEARLS Foundation in its efforts to provide safe, clean drinking water to those in need,” says Andreas Weissenbacher, CEO of BWT.

Auction details

The auction of this exceptional watch will take place on The Auction Collective platform, from March 12th at 11:00am CET to March 22nd at 4.00pm CET, a very symbolic date because it is the official World Water Day. Collectors and enthusiasts will have the opportunity to own a unique piece while supporting a noble cause. The successful buyer will be offered the possibility to customize the watch, by changing the small domed dial in blue or by choosing a blue rubber strap or a pink camo rubber strap.

About BWT

The Best Water Technology Group is Europe's leading water technology company. Around 5,500 employees work towards the goal of providing customers from private households, commerce and industry, hotels and municipalities with innovative, economic and ecological water treatment technologies, that guarantee maximum safety, hygiene, health and well-being in the daily use of water. BWT provides modern water treatment systems and services for drinking water, pharmaceutical and process water, heating water, boiler water, water for cooling and air conditioning systems as well as water for swimming pools. All over the world our Research & Development teams, using state-of-the-art methods, work on new processes and materials with the aim of developing ecological and economical products. A key development issue is the reduction in the products’ use of operating resources and energy consumption and the resulting minimisation of CO2 emissions. The declared goal of BWT is to make perfect quality drinking water available all over the world and to reduce the consumption of single-use plastic bottles. That saves the complex transport, storage and disposal of single use water bottles. BWT pays particular attention to sustainability, social responsibility and the careful use of limited resources in order to leave a beautiful, livable world for future generations – according to the claim: BWT – For You and Planet Blue. More information about the group of companies at www.bwt.com.

Technical specifications


H. Moser & Cie. Streamliner Cylindrical Tourbillon Skeleton Alpine Unique Piece

Reference: 6811-1201

Unique piece 1/1

Case

  • Material: Steel with a blue DLC treatment, topped by a slightly domed sapphire crystal
  • Diameter: 42.3 mm
  • Height without sapphire crystal: 11.0 mm
  • Height with sapphire crystal: 14.0 mm
  • Screw-in crown adorned with an engraved "M"
  • See-through case-back
  • Water-resistant to 12 ATM

Dial and hands

  • Small domed dial in deep pink synthetic corundum at 12 o'clock
  • Skeletonised main dial
  • Super-LumiNova® indices
  • Blued 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 vph (3 Hz)
  • Number of jewels: 28
  • Number of parts: 171
  • Automatic bi-directional pawl winding system
  • Gold, fully skeletonised oscillating weight
  • Power reserve: minimum 74 hours
  • Cylindrical balance-spring with two Breguet overcoils
  • One-minute flying tourbillon at 6 o'clock with blue skeletonised bridge; hand-bevelled balance bridge
  • Diamond bevelling
  • Main plate and bridges with anthracite finish

Functions/Indications

  • Hours and minutes

Strap and buckle

  • Pink rubber strap
  • Steel folding clasp, engraved with the Moser logo

Up for auction

For more information, please visit theauctioncollective.com

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