Model Number: OP110.40.AK.AA.A Movement: Caliber: Exclusive Manufacture Jacob&Co Manual-Winding JCFM04 Power Reserve: 42-Hours Frequency: 21’600 vib/h (3 Hz) Jewels: 58 Functions: Subsidiary hour and minute dial Triple-axis high-speed tourbillon: External tourbillon cage: 180 seconds Intermediate tourbillon cage: 48 seconds Internal tourbillon ...