Game of Thrones - House of the Dragon Collector Set

Vermithor Central Floating Tourbillon

Unique piece

Reference GTDGT-VMT24

45 mm grade 5 titanium case with brown PVD

5-day power reserve central floating tourbillon

Openworked dial with a Damasteel® part fixed to the hour wheel

CHF 108'000

Product specifications and pricing are subject to change. Indicated price does not include any tax or import duty.
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Game of Thrones / House of the Dragon

Kross Studio and Warner Bros. present a collection inspired by the legendary worlds of "Game of Thrones" and "House of the Dragon". Each dragon from the fantasy series is embodied in a unique Collector Set, a signature of the Studio that combines innovation, Haute Horlogerie, and art.

The ultimate Targaryen-inspired timepiece

This watch has been meticulously crafted with the precision and elegance befitting a custom commission for a member of the Targaryen family. It encapsulates the distinctive aesthetic codes of the Targaryens, evident in the opulence of its watch case and the intricate details of its movement.

KS 7'005 Caliber

The Game of Thrones Central Floating Tourbillon is equipped with the KS 7’005 caliber, a manual-winding patented floating central tourbillon designed, crafted, and assembled in-house. This remarkable complication is a testament to the pinnacle of horological expertise, brought to life by the master artisans at Kross Studio Manufacture.

Floating in the skies

Like a dragon gliding across the heavens looking down from above, the floating central tourbillon’s suspension just below the sapphire crystal dome offers a breathtaking view of the inner workings of the watch beneath it.

With the tourbillon and its fixed second wheel levitating above the movement and hands, the design provides a never-before-seen perspective into the mesmerizing mechanics of the tourbillon. This innovative design feature provides the opportunity to fully admire this masterpiece of horology from every angle.

Peripheral time display

The hours and minutes are displayed in a unique peripheral format made possible by a planetary gear system that orbits 360° around the tourbillon. A 12-factor gear ratio allows the planetary system to empower the progression of the hours. Adding to this innovation, the hour-and-minute display system is fixed on two broad, high-precision ball bearings designed to optimize the movement's efficiency as much as possible.

Valyrian Steel Dial

The dial, made of Damasteel®, is a reminiscent of Valyrian steel that fans will recognize thanks to its striated appearance, made up of multiple dark and shimmering layers. The Damascus steel used in the Dragon Central Tourbillon dial is crafted by Damasteel, the same foundry that forged the metal used in the HBO series’ swords.

A 45mm titanium engraved case

The ergonomically designed watch case, crafted from grade 5 titanium, intricately replicates the scales of a dragon through three-dimensional engraving, and a sapphire crystal dome safeguards the central tourbillon.

Case Back

Furthermore, the Targaryen House sigil, a three-headed dragon breathing flame, is hand engraved in the center of the watch case back. Each case back is uniquely identified by the engraved name of the singular dragon that inspired the collector set, with only one set dedicated to a single dragon.

Winding the watch and setting the time are effortlessly achieved using the "D-ring crown" on the case back and the "Time Set" push button, strategically positioned at 3 o'clock along the watch's edge. This system not only maintains design symmetry and enhances comfort compared to a traditional crown, but it also facilitates quicker winding, adding a practical touch to the overall experience.

Technical Specifications


Thickness without crystal
Grade 5 titanium with brown PVD
Dome-shaped anti-reflective sapphire crystal
Case Back
Grade 5 titanium
D-ring crown in grade 5 titanium
Water Resistance
30m or 3ATM


KS 7'005
Manual-winding patented floating central tourbillon
Overall Diameter
Power Reserve
5 days
21'600 bph / 3 Hz

Dial & Hands

Openworked dial with a Damasteel® part fixed to the hour wheel.
Brown PVD, circular satin-brushed inner bezel with black minute markers
Green PVD satin-brushed with black Super-LumiNova® coating
Green PVD satin-brushed with black Super-LumiNova® coating

Straps & Clasp

Brown PVD grade 5 titanium deployant buckle clasp

Watch Manufacture × Art Studio

Just like every other Collector Set ever produced, this one is composed of a high-end timepiece and a functional sculpture. This time, we looked to the dragon’s origins, and their eggs, to inspire this collector set’s unique functional sculpture. 

The Dragon Egg Functional Sculpture, designed by Marco Tedeschi, is produced in collaboration with the French workshop Leblon Delienne, long renowned for their incomparable expertise in crafting pop sculptures.

Faithful to the story

Each resin Dragon Egg has been painstakingly airbrushed to create a unique finish that is wholly individual, and each’s design draws inspiration from a particular dragon. The outer shape of the egg was created using a 3D scan of the TV show props.

“Dreams didn't make us kings. Dragons did” - Daemon Targaryen

The egg opens to serve as a nest, to store the Kross Studio Floating Central Tourbillon timepiece or any watch of choice. The design was carefully planned down to the smallest detail. The watch base features seven slots: one for each of the saga’s Seven Kingdoms.

The two towers that hold the watch cushion are inspired by the design of Dragonstone castle, the ancestral seat of House Targaryen.


Height with base 
231.5mm (9.11 inches) 

Height without base 
214.90mm (8.4 inches) 

168mm (6.6 inches)

Cushion in microfiber cloth

≈2.2kg (≈4.8 pounds)

A collection of unique pieces

The unique collector sets revealed are the first of more to come. Each is dedicated to the dragons presented in the fantasy saga “Game of Thrones” and its prequel “House of the Dragon”.

In the set

Vermithor Central Floating Tourbillon Watch

Dragon Egg

Set of two straps

Owner's book

Microfiber cloth

Art gloves

International Warranty

Register your product online and be granted an extra 3-year warranty. It will extend the original 2-year warranty of the Vermithor Central Floating Tourbillon watch to 5 years. 



User Manual


Press Material