CONCIERGE PRICE: $118,197

THE TRANSPARENCY PUSHED TO THE LIMITS

THE DESIGN

It does not boast an ordinary movement that has been skeletonized afterwards, but a tourbillon movement that has been created from scratch to be symmetrical, transparent and resplendent.

To further enhance transparency, the U20 features a sapphire main plate. The bridges have been made of blued titanium and have been skeletonized to increase transparency even further. The bridges’ beam shape also maximizes rigidity − the latter being essential for chronometric precision.

The discerning eye will be pleased to discover that haute horlogerie has not been sacrificed on the altar of transparency: components in the Ultra-Skeleton Tourbillon have been hand-chamfered, hand-polished and hand satin-finished to ensure that they look as good as they are filigree.

And to further increase visibility into the top of the three-dimensional movement, the U20 Ultra-Skeleton Tourbillon features a unique design element. The case dispenses with a bezel and instead uses a sapphire crystal dome, which also allows a sideways view onto the movement.

The U20 Ultra-Skeleton Tourbillon deserves closer inspection, which reveals many of the well-thought-out details that go into transforming a skeleton watch into an ultra-skeleton haute horlogerie watch: the variable inertia balance wheel of the tourbillon is especially designed and crafted to minimize air friction; the sapphire main plate is polished to the highest optical grade; ruby bearings are set into solid gold chatons. The ultra-light case, entirely made of carbon-fiber, titanium and sapphire, has been designed to echo the visual lightness and the technical feel of the timepiece.

THE CALIBER A250

The tourbillon’s steel cage is hand chamfered and polished with flat surfaces either mirror-polished or satin-finished.

The variable inertia balance wheel is regulated by four gold weights around its perimeter. In the quest for high performance, the rim of the balance wheel has been milled to maximize aerodynamics and reduce air resistance.

The highly engineered movement further features beam-type titanium bridges which are skeletonized to increase transparency even more.

The titanium mainspring barrel bridge is supported by slim pillars set directly into the sapphire main plate to optimize visual lightness.

All wheels throughout the entire gear train have a specially developed six-spoke design, again in the quest for maximum rigidity for minimum mass.

All of the rubies, which actually act as low-friction bearings, are fitted into solid gold chatons that are embedded in the sapphire main plate. Gold chatons not only look good and attest to the movement’s haute horlogerie bona fides, they are also non-magnetic and corrosion resistant like the sapphire itself.

IN-DEPTH LOOK

The U20 Ultra-Skeleton Tourbillon in details
The movement is based on a sapphire main plate, with key components supported by beautifully hand finished, blue skeletonized satin-finished titanium bridges.

The absence of a dial and the use of a sapphire crystal dome set directly onto the carbon fiber case allow full visual access to the movement from both the top and sides, accentuating the three-dimensionality of the movement’s architecture.

The titanium lugs, which are securely attached to the carbon fiber case and reinforced with an armature of carbon fiber, have a very technical shape and echo the titanium bridges of the movement. However, the intricacy of the lugs is softened by the clever use of polished chamfered edges and contrasting satin-finished surfaces.

Special sapphire main plate
The sapphire in the U20 Ultra-Skeleton Tourbillon is very specific, offering the essential characteristics necessary for use in a haute horlogerie timepiece. The sapphire main plate is first crafted from a solid block of sapphire before being painstakingly polished to be perfectly transparent.

This elaborate process results in a very precise main plate with tolerances in the micron range. The latter is important as the sapphire used throughout the Ultra-Skeleton Tourbillon is not decorative but 100% functional.

TECHNICAL SPECIFICATIONS
REFERENCE : 0TCAB.U01AC004T

– LIMITED EDITION OF 18 PIECES –

FUNCTIONS

– Central hours & Minutes

– One-minute flying tourbillon,

MOVEMENT

– Haute Horlogerie manufacture movement with sapphire main plate and blue skeletonized satin-finished titanium bridges

– Jewels :18, set in solid gold chatons

– Diameter: 32.60 mm

– Thickness: 5.78 mm

– Power reserve : 90 h

– Frequency : 21,600 vph / 3 Hz

TOURBILLON CAGE

– Steel

– Hand-chamfered and hand-polished

MOVEMENT FINISHING

– Haute horlogerie : All steel component with hand-chamfered and hand-polished edges, flat surfaces mirror-polished or satin-finished

CASE

– Material : NPT Carbon-Fibre and Titanium

– Diameter : 42.0 mm

– Height : 10.30 mm including sapphire crystals

– Crystals : Sapphire crystal dome with anti-reflective coating on inside surface

– Water resistance : 30 m / 100’/ 3 atm

DIAL

– Material : Sapphire dial is actually the movement main plate

– Hour & minute markings : printed spokes on outer chapter ring

– Hour & minute hands : Rhodium-treated and skeletonized

BUCKLE & STRAP

– Strap : stealth black alligator leather with titanium insert

– Buckle : Titanium, pin buckle engraved with Angelus logo

Slay Billionaire offers free and insured worldwide delivery. You can expect your timepiece to be delivered in average within 2-5 working days for the UK and European Community, and 4-8 working days for the rest of the World.

Concierge Price: $118,197
Includes complimentary worldwide shipping

BUY NOW
Instructions to purchase: click the Buy Now link above, enter the title of this post in the enquiry field, fill in the necessary details and click send. Slay Concierge will contact you to confirm details

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TRANSPARENCY PUSHED TO THE LIMIT

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