A comprehensive article about Activity Classification Algorithm is being prepared by our editorial team. In the meantime, see the definition above and explore related terms below.
Related Terms — Movement
36000 BPH
Movement oscillating at 36,000 beats per hour, standard in chronographs for 1/10th second resolution.
Accelerometer Sensitivity Calibration
Factory-tuned inertial measurement adjustment ensuring accurate motion detection across temperature ranges
Accuracy Tolerance
Acceptable deviation from precise time, chronometer ±4-6 sec/day, standard ±15 sec/day
Amplitude
Maximum arc of the balance wheel's swing; indicates movement health and power reserve.
Amplitude Drop
Reduction in mainspring power transmission indicating wear; affects timekeeping.
Anti-Magnetic
Movement shielded or constructed to resist magnetic field interference affecting timekeeping.
Anti-Shock System
Protective mechanism that allows jeweled bearings to move laterally when watch experiences impact.
Antimagnetic Properties
Resistance to magnetic fields, critical in modern movements like Omega Co-Axial 8900