Key Highlights
- Three fully independent rotating discs display hours, minutes, and seconds via triangular indicators
- Dial hand-set with sapphires, rubies, tsavorites, and amethysts in a spiral gemstone composition
- Powered by the in-house MVD 2800-TMY calibre across 217 components
- 18K rose gold round case, 36 mm diameter, with a skeletonised central plate
- Designed, crafted, and assembled at Watchland manufacture in Genthod, Switzerland

Distinctive Traits
Reference 7036 TM RB 1R CRB carries an architecture that no other timepiece in Franck Muller’s current portfolio attempts: three separate rotating discs, each mechanically independent, each dedicated to a single time indication. The hours disc, the minutes disc, and the seconds disc revolve in concert, each guided by its own triangular indicator, converting the act of reading the time into a choreography of coloured stone and polished gold.
The seconds disc presented the principal engineering challenge. Its rotation rate is substantially faster than the hour and minute equivalents, demanding a bespoke energy-distribution solution within the MVD 2800-TMY movement to prevent power loss from affecting the slower-running discs. The result is a calibre that feeds three distinct mechanical circuits from a single source without sacrificing amplitude or rate stability.
Design and Gemstone Composition
The dial is constructed as a spiral of hand-set precious stones that draws the eye inward toward the centre where the discs rotate. Sapphires, rubies, tsavorites, and amethysts are sequenced to produce a continuous chromatic gradient rather than a zoned or sectoral arrangement. Light behaviour across this surface changes with the viewing angle, the facets of each stone refracting differently as the discs pass beneath them.
Colour selection across competing polychromatic jewellery dials can often favour visual intensity over coherence. On the Cintree Curvex Color Medley, Franck Muller demonstrated an ability to maintain tonal balance at high saturation; the Triple Mystery Rainbow applies the same discipline to a round dial format where the gradient must resolve cleanly at the disc apertures as well as at the bezel edge.

Movement and Structure
The MVD 2800-TMY movement sits within a 36 mm, 18K rose gold case comprising 217 components. The skeletonised central plate is the architectural decision that makes the construction viable: removing mass from the plate reduces the load on the energy train while preserving the rigidity needed to keep three disc assemblies in precise rotational alignment.
Rose gold at 18K provides the case with both thermal stability and the warm chromatic context that deepens the gemstone palette on the dial. The entire piece is designed and assembled at Watchland in Genthod, the same manufacture responsible for complications including the world’s first tri-axial tourbillon. For context on Franck Muller’s approach to skeletonised mechanics, the Master Jumper Skeleton illustrates how the manufacture uses open architecture to serve both visual and technical ends.
Heritage and Collection Lineage
The Mystery lineage at Franck Muller follows a clear developmental arc. The original Mystery replaced conventional hands with a single rotating disc. The Double Mystery extended that logic to two indications. The Triple Mystery Rainbow closes the sequence by adding the seconds, producing a complication that the manufacture has not previously attempted in this form.
The Vanguard Crazy Hours Jisbar represents a parallel strand of unconventional timekeeping within the catalogue: where the Crazy Hours displaces the numerals themselves, the Triple Mystery eliminates the hand entirely in favour of the disc. Both approaches place Franck Muller outside the conventions of Swiss-lever watchmaking, in a position defined by its own internal logic of horological theatre.

Why Collectors Take Note
The Triple Mystery Rainbow sits at the convergence of two categories that are rarely executed simultaneously at this level: high jewellery and genuine mechanical complication. The gemstone setting is not decorative overlay on a standard movement; the spiral composition is integral to the perception of the disc display beneath it. Neither the jewellery nor the mechanics can be considered independently of the other.
For the GCC collector whose acquisition criteria span both haute horlogerie and haute joaillerie, a 36 mm rose gold piece with a hand-set polychromatic dial and a three-disc calibre occupies a distinct position. The case diameter places it at the crossover between strong wrist presence and refined proportion, and the choice of rose gold over white or yellow reads as a deliberate alignment with the warm tone of the stone gradient above it.
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Frequently Asked Questions
What movement powers the Franck Muller Round Rainbow Triple Mystery?
The Round Rainbow Triple Mystery is equipped with the MVD 2800-TMY calibre, which drives three fully independent rotating discs for hours, minutes, and seconds. The integration of the seconds disc required a specific technical development to ensure energy efficiency and long-term reliability.
What is the case size and material of the Round Rainbow Triple Mystery?
The Round Rainbow Triple Mystery is housed in an 18K rose gold case measuring 36 mm in diameter. It comprises 217 components in total.
What gemstones are used on the dial of the Round Rainbow Triple Mystery?
The dial is hand-set with sapphires, rubies, tsavorites, and amethysts, arranged in a spiral composition. The stones are selected to produce a continuous gradient of colour across the dial surface.
How does the Triple Mystery differ from earlier Mystery models by Franck Muller?
The original Mystery replaced traditional hands with a single rotating disc, while the Double Mystery introduced a second disc for a two-indicator display. The Triple Mystery adds a third disc dedicated to the seconds, creating a three-disc architecture that Franck Muller describes as a fully unprecedented visual display of time in motion.
Where is the Franck Muller Round Rainbow Triple Mystery manufactured?
The Round Rainbow Triple Mystery is designed, crafted, and assembled at Franck Muller's Watchland manufacture in Genthod, Switzerland, by engineers and master watchmakers based at the site.



