Horologist Interview Preparation Guide

Most frustrating is working on over-complex, poorly made/designed, old musical instruments etc. The kind I can't see the point in, but who's owners force us to service them, by threatening us with money.

Again, companies want to hire people who are passionate about the job, so you should have a great answer about why you want the position. (And if you don't? You probably should apply elsewhere.) First, identify a couple of key factors that make the role a great fit for you (e.g., “I love customer support because I love the constant human interaction and the satisfaction that comes from helping someone solve a problem"), then share why you love the company (e.g., “I’ve always been passionate about education, and I think you guys are doing great things, so I want to be a part of it”).

Abraham Louis Breguet, 1747-1823. Horological genius and inventor, and one of the most famous watchmakers of all time. The name is also applied to a balance spring which has its outer coil raised above the body of the spring and curved inward.

Also known as a "water clock", an ancient Greek time-keeping device similar to an hour-glass, which used a regulated flow of water or mercury through a small aperture to mark the passage of time. It is said that the clepsydra was invented to limit the speaking time of Greek orators (public speakers), which means that the first clocks were really invented for the purpose of encouraging politicians to sit down and shut up!

Aaron Dennison was one of the "Fathers" of the American watch industry, and he invented several standards of measuring watches and mainsprings. The Dennison Gauge for watch sizes is based on a size A being 1" and for each additional size larger, you would add 1/16". The most common sizes were N (1 11/16), which is close to 18s and L (1 10/16), which is close to 16s. Used primarily by the E. Howard Watch Company (of which Dennison was a founder). Dennison Gauge is still used for the measurement of mainsprings for American pocket watches.

Poising a balance by measuring its errors ona timing machine while the watch is running in different positions. Dynamic poise compensates for the motion of the entire oscillating balance system.

Control Officile Suisse de Chronometers or Swiss Controle Officiel des Cronometres- the independent Swiss regulatory organization that rigorously tests and certifies (or fails) watch movements for chronometer status.

A thin steel tube with pinion leaves at its lower end and which carries the minute hand on its upper end. Provides a friction "clutch" with the center arbor when setting the watch.

Also called "mainspring barrel." Thin cylindrical "can" which holds the mainspring of a watch and provides the motive power to drive the gear-train, usually through the center wheel. See also "Motor Barrel" and "Going Barrel."

The act of heating and slowly cooling a metal in order to render it softer for the purpose of machining, or to relieve internal stress.