- Year
- 2026
- Condition
- Unworn
- Set
- Box and papers
Set and condition
Complete set
This RM 55-01 White Quartz TPT® is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
White Quartz TPT® case with the RMUL4 calibre
The White Quartz TPT® execution is one of the three colourways in which the RM 55-01 Manual Winding was launched, alongside Carbon TPT® and Grey Quartz TPT®. The composite is built from silica threads rather than carbon; Quartz TPT® fibres are used industrially for their resistance to high temperature, their strength and their transparency to electromagnetic waves. The case is in Carbon TPT® and Quartz TPT®.
The calibre is the RMUL4, a manual winding skeletonised movement indicating hours, minutes and seconds. It is held by four microblasted titanium spline screws within the three-part tonneau case, with rhodium-plated hands moving above a four-part flange in titanium, carbon fibre and steel.
Key details
Design and engineering
- Calibre RMUL4Manual winding skeletonised movement with hours, minutes and seconds. Movement dimensions are 31.25 × 29.45 mm with a thickness of 3.46 mm, running on 26 jewels at 28,800 vph (4 Hz).
- Quartz TPT® caseSilica threads are divided into layers no thicker than 45 microns, saturated in resins developed for Richard Mille, and stacked by an automatic positioning system that rotates the fibre orientation by 45° between layers. The stack is heated to 120°C under 6 bar of pressure and then CNC-machined at the brand’s own facilities.
- Baseplate and bridges in grade 5 titaniumThe baseplate is grade 5 titanium, microblasted and sanded; the going train is held by three bridges, also grade 5 titanium, sanded and treated with Titalyt®. The thicker satin-brushed structural parts are worked to the same tolerances.
- Free-sprung balance with variable inertiaThe regulator index is eliminated and calibration is made by four small adjustable weights fitted directly to the balance. The balance is Glucydur®, four arms, moment of inertia 4.8 mg·cm², angle of lift 53°, with an elinvar balance spring by Nivarox® and a Triovis No. 2 index assembly.
- Double-barrel systemTwo barrels share the stored energy, increasing rotations and reducing pressure on teeth, bearings and pivots.
- Flanges and crystalsThe upper flange is grade 5 titanium with index points filled with approved luminous material; the lower flanges are polyamide and 316L stainless steel. Both crystals are sapphire at 1,800 Vickers with anti-glare treatment on both faces.
The reference
Technical specifications
| Reference | RM 55-01 |
|---|---|
| Calibre | RMUL4, manual winding, skeletonised |
| Functions | Hours, minutes, seconds |
| Movement dimensions | 31.25 × 29.45 mm |
| Movement thickness | 3.46 mm |
| Power reserve | Around 55 hours (± 10%) |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 26 |
| Baseplate | Grade 5 titanium, microblasted and sanded |
| Bridges | Grade 5 titanium, sanded, Titalyt® treated |
| Balance | Glucydur®, 4 arms, inertia 4.8 mg·cm², lift angle 53° |
| Balance spring | Elinvar by Nivarox® |
| Index assembly | Triovis No. 2 |
| Shock protection | Incabloc 908.22.211.100 (transparent) |
| Escapement wheel jewels | Rubifix (transparent) |
| Barrel arbour | AP 20 steel |
| Barrel | Double barrel |
| Stem | Two positions: manual winding, hand setting |
| Case assembly | Grade 5 titanium spline screws |
| Upper flange | Grade 5 titanium, luminous index points |
| Lower flanges | Polyamide and 316L stainless steel |
| Crystal | Sapphire, 1,800 Vickers, anti-glare both sides, 1.00 mm min. |
| Caseback | Sapphire, 1.55 mm centre / 2.29 mm outer edges |
| Case material | Carbon TPT® and White Quartz TPT® |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2026
- Free insured delivery within Australia · international quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 6 reviewsFrom clients of HYPA International on Google. Read the reviews
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