When a watch dealer of Hossein Mahallati's caliber puts something on his wrist, the horological world takes note. The CEO and founder of HM Watches — widely regarded as one of Dubai's foremost authorities on ultra-high-end timepieces — was recently spotted wearing the Richard Mille RM52-06 Tourbillon Mask in Carbon TPT, a watch so rare that fewer than two dozen examples exist anywhere in the world.
The Richard Mille RM52-06 represents a direct evolution of the iconic RM052 Skull Tourbillon, a reference that helped define Richard Mille's reputation for merging fine watchmaking with provocative artistic iconography. Where the RM052 introduced the memento mori aesthetic to the brand's DNA, the RM52-06 refines it with significantly greater engineering ambition. The defining element is the eight-arm baseplate, machined in its entirety from a single block of grade 5 titanium — a process that eliminates mechanical joints and distributes structural load with exceptional efficiency. That baseplate supports both the mask motif and the manual-winding tourbillon movement within a Carbon TPT case measuring 49.94 mm × 42 mm × 16.15 mm. Carbon TPT, Richard Mille's proprietary multilayer carbon fiber composite, is laid up in sheets rotated at 45-degree intervals and then infused under high pressure, resulting in a material that is simultaneously lightweight, extraordinarily rigid, and visually unmistakable with its characteristic parallel grain pattern.
From a collector perspective, the RM52-06 occupies a particularly coveted position. With a production run capped at just 18 pieces, it sits well below even the already limited allocations typical of Richard Mille's artistic series. The combination of the tourbillon complication, the sculptural titanium architecture, and the Carbon TPT case makes it a convergence of the brand's technical and artistic peak — a piece that serious collectors pursue through dealer networks rather than boutique waitlists.
Mahallati's choice to wear this specific reference is itself a statement. As someone whose professional life is built around evaluating, trading, and authenticating watches at the highest tier of the market, he is not a passive wearer. The RM52-06 on his wrist carries the implicit endorsement of one of the region's sharpest eyes in the business.
On the secondary market, the Richard Mille RM52-06 Tourbillon Mask commands a significant premium over its already steep list price. Grey-market values have climbed steadily as the 18-piece allocation disperses among institutional collectors and private dealers, making open-market availability increasingly rare.
Jas Mathur wearing Richard Mille
Richard Mille RM 52-06 'Mask Blue' Quartz TPT Carbon Tourbillon – 10-Piece Limited Edition | Jas Mathur
Ref. RM 52-06
List Price: unknown
28/04/2023
J Balvin wearing Richard Mille
Richard Mille RM 52-06 'Mask Tourbillon' Pièce Unique Green Sapphire – J Balvin
Ref. RM 52-06
List Price: $6,500,000
01/12/2022
Larsa Pippen wearing Richard Mille
White Quartz TPT Richard Mille RM52-06 Tourbillon Mask Limited Edition – Larsa Pippen Spotted Wearing One of Only 18 Pieces
Ref. RM52-06
List Price: $520,000
30/11/2022
Khalifa Bin Hamad wearing Richard Mille
Richard Mille RM 52-06 'Mask' Tourbillon Blue Quartz TPT – Limited to 18 Pieces
Ref. RM52-06
List Price: $520,000
30/11/2022
New
Drake wearing Richard Mille
Richard Mille RM 19-02 Tourbillon Fleur with Magnolia Automaton and Flying Tourbillon
Ref. RM 19-02
List Price: $927,500
07/07/2026
New
Ekitike wearing Richard Mille
Richard Mille RM 38-02 Tourbillon Pink and White Carbon TPT Bubba Watson Limited Edition (50 Pieces)
Ref. RM 38-02
List Price: $3,000,000
07/07/2026
New
İlkay Gündoğan wearing Richard Mille
Richard Mille RM 010 UAE Edition in Grade 5 Titanium with Skeletonized Dial and Eastern Arabic Numerals
Ref. RM 010
List Price: $65,000
02/07/2026
New
Tadej Pogačar wearing Richard Mille
Richard Mille RM 64-01 Tourbillon Colnago Limited Edition White TPT with Azure Blue Accents
Ref. RM 64-01
List Price: $988,000
02/07/2026
New
J Balvin wearing Richard Mille
Richard Mille RM 35-03 Automatic Rafael Nadal Quartz TPT® Pastel Orange and Light Blue
Ref. RM 35-03
List Price: $270,000
30/06/2026
New
Mohamed Salah wearing Richard Mille
Richard Mille RM 027-01 Automatic Tourbillon White Ceramic
Ref. RM 027-01
List Price: $603,000
26/06/2026
New
Cole Palmer wearing Richard Mille
White Ceramic Richard Mille RM 030-01 with Skeletonized Dial and Declutchable Rotor
Ref. RM 030-01
List Price: $450,000
22/06/2026
New
Mohamed Salah wearing Richard Mille
Richard Mille RM 67-02 Carbon TPT Automatic Chronograph with Orange Strap – Sébastien Ogier Limited Edition
Ref. RM 67-02
List Price: $440,000
22/06/2026