Definition
In the context of horology, “frequency” refers to the number of oscillations per second of a watch’s balance, usually expressed in Hertz (Hz) or vibrations per hour (vph). Frequency determines how accurately a watch measures time, making it a crucial factor in its performance.
Origin
The consideration of frequency as a critical aspect in the accuracy of watches became significant with the progress of mechanical watchmaking, particularly from the 17th century onwards. The development of more accurate watches was driven by the need for improved maritime navigation and scientific advancements.
Usage
Frequency is a term widely used in the watchmaking industry, especially in relation to mechanical watches. A higher frequency usually means greater accuracy, but it can also lead to faster wear and tear of components and a shorter power reserve.
Examples
Watches with a frequency of 4 Hz (28,800 vph) are common and considered a good balance between accuracy and durability.
Some high-precision watches, like the Zenith El Primero, operate at a higher frequency of 5 Hz (36,000 vph).
Synonyms
Terms like “oscillation rate” and “balance speed” can be used similarly.
Related Terms
- “Balance”: The part of the watch that oscillates, determining its frequency.
- “Power Reserve”: The duration a mechanical watch can operate without being wound again, which can be affected by the frequency.
Tips
When choosing a mechanical watch, consider frequency as a factor in accuracy and required maintenance.
Watches with higher frequencies may require more frequent maintenance due to increased wear.
Trivia
The pursuit of greater accuracy led to the development of watches with extremely high frequencies, but these often have practical drawbacks, such as a shorter power reserve.
Balancing between frequency, accuracy, durability, and power reserve is one of the main challenges of watchmaking engineering.