Overview

Le Mans Classic colours in green and white Quartz TPT

Richard Mille has been associated with the Le Mans Classic since 2002 and has made a watch for every edition of the meeting since 2008, each in the event’s colours. This is the RM 72-01 execution: a white Quartz TPT® bezel and caseback over a green caseband, with a green inner flange carrying the tachymeter, a green crown, black pushers and a dark green rubber strap.

The dial carries the Le Mans Classic chequered-flag emblem at 11 o’clock and a chequered surround to the date. The movement is the CRMC1, unchanged across the RM 72-01 line.

Key details

Design and engineering

• Calibre CRMC1Skeletonised movement with automatic bidirectional winding, hours, minutes, small seconds, date, flyback chronograph, function indicator and stop seconds. It is 6.05 mm thick, comprises 425 components, runs on 39 jewels at 28,800 vph (4 Hz), and provides around 50 hours of power reserve regardless of how much the chronograph is used.
• Quartz TPT® caseSilica threads divided into layers no thicker than 45 microns, saturated in resins developed for Richard Mille, stacked with the fibre orientation rotated 45° between plies, cured at 120°C under 6 bar and machined in-house. The blend is exposed by machining, so the pattern differs on every case.
• Flyback chronograph with two oscillating pinionsPatented by Richard Mille and the first chronograph to use two oscillating pinions. The pinions are mounted on rockers actuated by a six-column wheel, and draw power directly from the barrel rather than through the timekeeping gear train, so that the chronograph’s three counters are supplied at the point where torque is greatest and the display is disengaged from the chronograph’s seconds wheel. Richard Mille specifies the arrangement as thinner than a vertical clutch and less sensitive to disturbance.
• Baseplate and bridgesGrade 5 titanium — 90% titanium, 6% aluminium, 4% vanadium — microblasted with a grey electroplasma treatment.
• Platinum rotorBidirectional and compact, allowing efficient winding within the movement’s height.
• Fast-rotating barrelOne revolution every five hours, which Richard Mille specifies for reduced periodic internal mainspring adhesion and smoother power delivery.
• Tripartite case38.40 × 47.34 × 11.68 mm, water-resistant to 30 m via three nitrile O-ring seals, assembled with 20 grade 5 titanium spline screws and abrasion-resistant 316L stainless steel washers.

Specifications

Technical specifications

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• Manufacturer warranty confirmed from the warranty card
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