Richard Mille RM 07-01 LADIES imported automatic machinery, length 45.66 x width 31.40 mm, female material: Korean ZTA ceramic Vibration frequency: 28800 oscillations per hour Number of gems: 25 power reserve: 50 hours case Thickness: 11.85mm Case Material: ZTA Ceramic Gold Material Dial Color: Black Dial Shape: Other Table Mirror Material: Sapphire Crystal Glass Crown Material: ZTA Ceramic Gold Material Back Through: Back Through Waterproof Depth: 50m