Watch Glossary
1676 horological terms explained
Adjustable mechanical cam modifying sunrise-sunset calculation for geographic location
Chronograph movement, hand-wound, 50-hour reserve, Swiss precision for military watches
Component in the escapement mechanism that controls the release of energy to the balance.
Fine-tuning lever escapement drop distance to achieve optimal beat regularity.
Type of escapement using pallet fork and lever to regulate energy release to balance
Precise angular positioning of lever banking pins to optimize impulse transmission efficiency.
Mathematical definition of lever impulse surface angle relative to escape wheel center.
Measurement protocol verifying balanced geometry of lever pallet fork arms.
Quantification of minor play between lever and escape wheel teeth at rest.
Gear ratio correction accounting for 18.6-year lunar nodal precession cycle