Richard Mille Automatic Winding Sapphire – RM 07-02

INTRODUCTION

The RM 07-02 Automatic Sapphire brings a feminine approach to technique, cloaking it with divine tones while maintaining transparency. We needed to preserve the transparency while adding a shade of colored, elegant but sufficiently marked.

This watch expresses femininity through its elegant tonneau shape, sculpted in colored sapphire, which is sublimated by a movement in 18k 5N red gold or white gold and set with hundreds of diamonds. The watch dial, whether in mother-of-pearl, jasper or pave-set stones, exhibits a refined classicism that feels resolutely contemporary.

Skeletonised automatic-winding in-house movement
Hours, minutes and variable-geometry rotor
Baseplate, bridges and variable geometry rotor in gem-set 5N red gold
Power reserve : around 50 hours (± 10%).
Dimensions: 32.90 x 46.75 x 14.35 mm
Sapphire Case

Crafted from sections of colored sapphire taken from a single block, this case is extremely difficult to machine.

Observing the manufacturing process of a sapphire case highlights the challenge its creation entails, from both an engineering and a technical standpoint. There is no room for even a single cutting error.

The case requires almost forty days of machining and finishing to meet the uncompromising specifications laid out by Richard Mille. Numerous tests then follow to verify that the brand’s resistance and comfort requirements have been met.

This case highlights the house’s skeletonised movement— in micro blasted white gold for the green and blue sapphire versions, and in 5N red gold for the pink and brown sapphire versions.

Movement Characteristics

Movement dimensions: 29.90 x 22.00 mm
Thickness: 5.05 mm
Number of jewels: 25
Balance: CuBe, 4 arms, 4 setting screws, moment of inertia 7.5 mg•cm 2, angle of lift 50°
Frequency: 28,800 vph (4 Hz)
Balance spring: AK3