Note; prices subject to change. Movement: Manual winding tourbillon Caliber RM21-02 Power Reserve: Approximately 70 hours Frequency: 21,600 vibrations per hour (3 Hz) Jewels: 27 Case Dimensions: 42.68 x 50.12 mm Water Resistance: 50 meters (5 ATM) Strap: White and black rubber strap with folding clasp