Richard Mille RM 07-03 Automatic Winding Coloured ceramics

INTRODUCTION

The RM 07-03 goal was to give our feminine watch collection a touch of colour, while retaining the elegance of its slender shape and its incredible ergonomics. The use of ceramic, golds and carbon TPT® makes it possible to add a variety of different shades.

– Skeletonised automatic movement with hours, minutes and adjustable rotor geometry.

Power reserve: around 50 hours (± 10%)

Dimensions : 45.66 x 31.40 x 11.85 mm

Collection of 3 watches, each limited at 50 pieces

Movement Characteristics

Movement dimensions: 29.90 x 22.00 mm

Thickness: 4.92 mm

Number of jewels: 25

Balance: CuBe, 4 arms, 4 setting screws, moment of inertia 7.5 mg•cm2, angle of lift 50°

Frequency: 28,800 vph (4 Hz)

Balance spring: AK3

Shock protection: INCABLOC 908.22.211.100 (transparent)

Escapement wheel jewels: Rubifix (transparent)

Case

Richard Mille has turned to new colored ceramics for these RM 07-01 bezels: Blush pink TZP ceramic for the RM 07-01 Pastel Pink, lavender pink TZP ceramic for the RM 07-01 Pastel Lavender and powder blue TZP ceramic for the RM 07-01 Pastel Blue.

Tetragonal Zirconia Polycrystal is a biocompatible ceramic constituted of over 95% zirconia (ZrO2). Its properties include remarkable corrosion resistance, a hardness providing scratch resistance (1,400 Vickers) and toughness superior to that of sapphire, associated with a desirably low density of around 6 g/cm3. The submicron grain size furthermore permits excellent surface finish for a stunning matt effect.

A long and difficult machining and grinding process using diamond tools is necessary to create the complex forms of the bezels. The casebands are made of microblasted white gold with hand-polished pillars.

The three-part case is water resistant to 50 metres ensured by 2 Nitrile O-ring seals. The case is assembled with 12 grade 5 titanium spline screws and abrasion resistant washers in 316L stainless steel.