Recent Blogs
Lever Chronometer Escapement: How It Works, Parts, Diagram, and Uses in Pocket Chronometers
How the lever chronometer escapement works in marine and pocket chronometers — detent geometry, impulse timing, and tuning rules used by horologists.
Harrison Winding Device Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
Harrison's maintaining power winding device keeps a precision clock running while you wind it. Used in marine chronometers and longcase regulators since 1722.
Fusee Chain and Spring Drum Mechanism: How It Works, Parts, Formula, and Diagram Explained
Fusee Chain and Spring Drum explained — how horologists use a tapered cone and chain to equalise mainspring torque across an 8-day run. Diagram, formulas,...
Fusee (form) Mechanism: How It Works, Parts, Diagram, and Uses in Watches and Chronometers
How a Fusee equalises mainspring torque in pocket watches and marine chronometers — geometry, formula, worked example, and selection guide for restorers.
Double Ratchet-wheel Escapement Explained: Parts, How It Works, and Marine Chronometer Uses
Double Ratchet-wheel Escapement explained — how the twin wheels deliver detached impulse, where it appears in marine chronometers, and how to spec one.
Compensation Balance Mechanism Explained: How the Bimetallic Wheel Corrects Temperature Error
How a Compensation Balance corrects temperature rate error in mechanical watches and chronometers — bimetallic theory, formulas, worked example, and design tradeoffs.
Arnold Chronometer Escapement Mechanism: How the Spring Detent Works, Parts, and Diagram
Arnold chronometer escapement explained — how the spring detent works, why it gives marine timekeepers ±0.5 sec/day rates, with worked example and design tradeoffs.
Chronometer Escapement Mechanism: How It Works, Parts, Diagram, and Marine Chronometer Uses
How the Chronometer Escapement works in marine timekeepers and precision watches — detent geometry, impulse mechanics, worked example, and design tradeoffs.