RM 27-01 — reference RM 27-01
Movement
Manual winding tourbillon
Size
47.70 × 39.70 mm (dealer source, uncorroborated)
Edition
50 pieces

Overview

Baseplate suspended on four braided steel cables 0.35 mm in diameter

The RM 27-01 carries its baseplate attached to the case by four braided steel cables just 0.35 mm across. Richard Mille describes the construction as adapted from suspended civil engineering structures, compressed into a few tens of millimetres. The combination of strength and flexibility protects the movement, which weighs 3.5 grammes.

The low movement weight comes from the materials: grade 5 titanium for the baseplate and tourbillon carriage, aluminium-lithium for the barrel bridges and gear trains. The case is carbon with a monobloc back, and its anthracite colour is a consequence of the high concentration of carbon nanotubes in the material. The edition runs to 50 pieces.

Key details

Case materialCarbon with a high concentration of carbon nanotubes; monobloc back
MovementCalibre RM27-01, manual winding tourbillon
Edition50 pieces

Design and engineering

  • Cable-suspended baseplateFour braided steel cables 0.35 mm in diameter attach the baseplate to the case, holding the movement in total suspension.
  • Movement weight of 3.5 gGrade 5 titanium for the baseplate and tourbillon carriage; aluminium-lithium for the barrel bridges and gear trains.
  • Carbon nanotube caseThe anthracite colour of the case follows directly from the concentration of carbon nanotubes in the composite; it is not a coating.
  • Monobloc backThe caseback is formed as a single piece with the case rather than assembled separately.

Specifications

Technical specifications

RM 27-01 · Technical datasheet
ReferenceRM 27-01
CalibreRM27-01
MovementManual winding tourbillon
FunctionsHours, minutes
Power reserve45 hours (dealer source, uncorroborated)
Jewels19 (dealer source, uncorroborated)
Movement weight3.5 g
Baseplate and tourbillon carriageGrade 5 titanium
Barrel bridges and gear trainsAluminium-lithium
Movement mountingSuspended on four braided steel cables, 0.35 mm diameter
Case dimensions47.70 × 39.70 mm (dealer source, uncorroborated)
Case shapeTonneau
Case materialCarbon with high carbon nanotube content; monobloc back
Watch weight18.83 g (press sources; not published by Richard Mille)
CrystalSapphire
StrapTextile
Edition50 pieces
Year2013

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RM 27-01 · Ref. RM 27-01

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