Caliber: Jaeger-LeCoultre Caliber 956 (Memovox), Jaeger-LeCoultre Caliber 899 (Date)Functions: Hours/minutes/seconds, date, unidirectional rotating inner bezel, alarm (Memovox only)Power Reserve: 45 hours (Memovox), 70 hours (Date)Winding: AutomaticFrequency: 4 HzJewels: 23 (Memovox), 32 (Date)Chronometer Certified: No
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