Đồng Hồ Richard Mille RM 029 Automatic Winding with Oversize Date

Skeletonised automatic winding movement with hours, minutes, seconds, oversized date and variable-geometry rotor.
Movement dimensions: 30.25 x 28.45 mm
Thickness: 4.14 mm
Number of jewels: 32
Barrel arbour: AP 20 steel
Balance: Glucydur®, 4 arms, moment of inertia 4.8 mg•cm², angle of lift 53°
Frequency: 28,800 vph (4 Hz)
Balance spring: elinvar by Nivarox®
Shock protection: INCABLOC 908.22.211.100 (transparent)
Escapement wheel jewels: Rubifix (transparent)
Stem with three positions: Manual winding, time setting, date adjustment