◆ Richard Mille4 min
Richard Mille RM 55-01: New In-House RMUL4, Sub-5g Movement, Three Quartz TPT Cases
Carbon
The successor to the RM 055 "Bubba Watson" lands as the cleanest, lightest manual-wind RM in years. The new in-house Calibre RMUL4 weighs under five grams, runs at 4 Hz with a 55-hour reserve, and ships in White Quartz TPT, Grey Quartz TPT, and Carbon TPT cases.
April 26, 2026
