Watch Glossary

Factory-tuned inertial measurement adjustment ensuring accurate motion detection across temperature ranges

Acceptable deviation from precise time, chronometer ±4-6 sec/day, standard ±15 sec/day

Machine learning system identifying exercise types from accelerometer and heart rate data

Maximum arc of the balance wheel's swing; indicates movement health and power reserve.

Reduction in mainspring power transmission indicating wear; affects timekeeping.

Movement shielded or constructed to resist magnetic field interference affecting timekeeping.

Protective mechanism that allows jeweled bearings to move laterally when watch experiences impact.

Resistance to magnetic fields, critical in modern movements like Omega Co-Axial 8900

Main rotating axle of the barrel that connects the mainspring to the gear train.

In-house automatic, 60-hour reserve, chronometer certified, basis for Royal Oak movements

Self-winding mechanical movement powered by the wearer's wrist motion via a rotor.