Richard Mille RM 21-01 Aerudyne Tourbillon Calibre RM21-01: Manual entanglement of the power reserve indicator using hours, minutes, function selectors, and power reserves. Size housing: 42.68 x 50, 12 x 14.30 mm Walk reserves: 70 hours (± 10%), indicated on the 11 o’clock value. HAYNES® 214® COHOMBICHAYNES® 214® Carbon Cells …continue reading