Watch Glossary

Component that engages escape wheel teeth to control gear train release

Jewel on pallet fork engaging escape wheel teeth for impulse transmission

Rolex's blue alloy hairspring resisting temperature changes and magnetic fields effectively.

Rolex innovation, paramagnetic alloy, temperature resistant, used in 3135 and 3235

Rolex specification measuring resistance to magnetic field interference in Parachrom alloy

Alloys resistant to magnetism, Parachrom hairspring in Rolex, alloy balance wheels

Golden Ellipse exclusive, hand-wound, ultra-thin, 48-hour reserve, haute horlogerie standard

Slender, elongated hand design typical of 1960s minimalist watches.

Rolex's automatic winding mechanism using a free-spinning rotor

Rate of change in balance wheel amplitude relative to temperature fluctuations.

Detailed analysis of varying spring constant along Phillips curve length.

Secondary vibrational modes induced by Phillips curve geometry during oscillation.

Transition zone where Phillips curve curvature changes direction within hairspring coil.

Deviation from predicted rate behavior due to Phillips curve geometric complexity.

Measurement of deviation from theoretical hairspring stiffness predictions across the operating spectrum.

Adjustment method mapping hairspring stiffness against frequency stability across temperature ranges.

Proportional relationship between Phillips curve arc radius and hairspring wire diameter.

Graphical representation of hairspring rigidity versus frequency response across environmental conditions.

Localized material stress points created by Phillips curve directional change.

Lag effect observed in hairspring behavior when temperature increases versus decreases.

Directional control exerted by Phillips curve on hairspring final outer coil trajectory.

Small gear with fewer teeth, typically fixed to wheel shaft for gear meshing

Thin shaft extending from watch gears that rotates in jeweled bearings to reduce friction.

Base structural component of the movement holding bridges, jewels, and gear pivots in place.

Fine-tuning of movement rate to account for accuracy differences in various wearing positions.

Duration the watch continues running after being fully wound without additional energy input.

Smartwatch operating system architecture managing app alerts and message delivery