Watch Glossary
1104 horological terms explained
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.
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.