Caliber: 5R65Functions: time, power reserve
link with datePower Reserve: 72 hoursWinding: automatic and manualFrequency: Spring Drive glide wheel rotating at 8 rotations per second, regulated by quartz
link timing packageJewels: 30Chronometer Certified: Internally controlled by Seiko to ±1 second deviation per dayAdditional Details: For more information on Spring
link Drive see our video series, right here.