Tag Archives: horological theory

A Pivotal Notion

The fundamental problem in watchmaking is friction. There are loads of ways to reduce the friction in a watch, such as jewelled bearings, correct oiling, new materials such as silicon etc. but one of the most straightforward is the shape of the pivots themselves. In wristwatches in particular, there are two main shapes of pivot: […]

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Useful Facts and Definitions

Amplitude: Maximum displacement of any point from the dead point. Vibration: Maximum displacement to maximum displacement, passing through the dead point. Oscillation: One complete cycle of the escapement (2 vibrations). The name of the rectangular slot in the mainspring (inner end) is the eye or eyelet and the bit attached to the outer end (it […]

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A brief explanation of the bipolar motor

It’s pretty common for people to dismiss the mechanical majesty of Quartz watches due to invisible ‘magic’ that seems to occur in the integrated circuit. Sure, a fully mechanical watch is much more beautiful, and mind-boggling to imagine that horological theory, at one relatively recent point in time, did not even exist. It is hard […]

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The word Isochronos comes from Greek and literally means ‘Same’ (Iso) ‘Time’ (Chronos). It relates to the consistency of a watch’s timekeeping in all tested positions of wear. This is largely controlled by the poise of the balance wheel and the flatness and centring of the hairspring. There are several factors that can impair the […]

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Chronographs Versus Chronometers

A chronograph is a watch that tells the time and records elapsed time on demand. It is not necessarily a chronometer and the two terms should NEVER be confused. For a watch to be a chronometer it must meet a certain standard in terms of accuracy. A chronometer is a watch of exceptional isochronism, measured […]

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