Richard Mille RM 51-02 WG
Case
Tonneau
Size
47.95 × 39.70 × 12.60 mm
Edition
30 pieces

Overview

Diamond spiral over black onyx with white-gold case

Introduced in 2015, the RM 51-02 Diamond Twister takes its form from a twisting spiral — a shape that recurs in the natural world and is associated with harmonic proportion. Fourteen diamond-set rays extend from the tourbillon at 6 o’clock across the dial architecture, a figure Richard Mille associates equally with the vortex of a galaxy, the whirlwind that gives the tourbillon its French name, and the spiral growth patterns found in shells and plants.

The manually wound RM51-02 calibre provides hours, minutes and power-reserve indication. Its BASEPLATE is black onyx, a cryptocrystalline quartz chalcedony of silicon dioxide — not the case, which is 18K white gold set with white diamonds and accented with black sapphires. The bridges are skeletonised, PVD-treated grade 5 titanium, and the strap is black.

Production was limited to 30 pieces.

Key details

MovementManual-winding calibre RM51-02
BaseplateBlack onyx
Edition30 pieces

Design and engineering

  • Calibre RM51-02The manually wound tourbillon movement provides hours, minutes and power-reserve indication with approximately 48 hours of autonomy.
  • Fourteen diamond-set raysFourteen rays extend from the tourbillon at 6 o’clock, forming the Diamond Twister dial architecture; the setting follows that geometry rather than the case outline.
  • Black onyx baseplateThe movement is constructed on a baseplate of true black onyx, distinct from the striped varieties that belong to the agate family. It is the BASEPLATE; a dealer description placing the onyx in the case is wrong.
  • Tourbillon at 6 o’clockSited at the origin of the spiral rather than at the centre of the movement.
  • PVD-treated titanium bridgesThe skeletonised bridges are produced from grade 5 titanium with PVD treatment and hand-finished surfaces.
  • White diamonds and black sapphiresThe white-gold case is set with white diamonds, with black sapphires used to accentuate parts of the case construction.
  • Torque-limiting crownThe crown incorporates a torque-limiting mechanism to reduce the risk of excessive winding force.
  • Sapphire casebackThe reverse of the movement is visible.

Specifications

Technical specifications

RM 51-02 Diamond Twister · Technical datasheet
ReferenceRM 51-02
Year2015
CalibreRM51-02
WindingManual
FunctionsHours, minutes, power-reserve indicator
ComplicationTourbillon
Power reserveCirca 48 hours
Frequency21,600 vph (3 Hz)
Jewels21
Movement dimensions30.20 × 28.60 × 4.97 mm
Tourbillon diameter12.30 mm
Balance diameter9.12 mm
BaseplateBlack onyx
BridgesGrade 5 titanium, skeletonised, PVD-treated
CaseTonneau
Case dimensions47.95 × 39.70 × 12.60 mm
Case materialWhite gold, set
Case settingWhite diamonds and black sapphires
Dial18K white gold, diamond-set spiral structure
Setting14 rays radiating from the tourbillon at 6 o’clock
CrystalSapphire, anti-reflective
CasebackSapphire
Water resistance50 m
StrapBlack
Edition30 pieces

Buying with HYPA

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  • Manufacturer warranty confirmed from the warranty card
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  • Registered Australian dealerHYPA International Pty Ltd · Victorian Second-Hand Dealer Licence SHD-0018017.
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Enquire about this watch

RM 51-02 Diamond Twister · Ref. RM 51-02 WG

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