Category Archives: tech stuff

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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Isochronism

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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What is the difference between a chronograph and a chronometer?

A chronograph is a watch that tells the time and records elapsed time on demand. Basically, it is a watch with a stopwatch integrated into the movement. 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 […]

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The Hairspring

The active length of the hairspring is from the pinning point at the collet to the counting point or index pins. The active length of the hairspring is altered by the movement of the curb pins along the end curve. Simply put, a shorter hairspring takes less time to return to complete one full oscillation […]

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To Key or not to key

The keyless work is used for winding the watch. It is thus named because it is the successor to key-wound movements. Originally, movements had to be wound by a separate key that was inserted into the back of the watch to wind the mainspring. Similarly, hands were once set by the same key, which could […]

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