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这是附加信息
Basic information
No.: RM 055
Brand: Richard Mille
Movement
Movement model: RMUL2
Movement diameter: 30.25x 28.4 mm
Frequency: 28,800 oscillations per hour
Power reserve: 55 hours
Appearance
Diameter: 49.90 x 42.70 mm
Case thickness: 13.05 mm
Dial color: black
Case color: white
Case color: white
Strap color: white
Case bottom: transparent, sapphire (1800 Vickers hardness) mirror, anti-glare treatment on both sides
Waterproof performance: 30 meters
Material
Case material: white ceramic
Dial material: flange made of black carbon fiber, time scale with homologous fluorescent coating. Flange treated with diamond-like carbon (DLC).
Mirror material: sapphire (1800 Vickers hardness) mirror, anti-glare treatment on both sides