Technology
机械表与石英表:精度较量与情感青睐
Introduction
The debate over which type of watch, mechanical or quartz, is more accurate is a long-standing one. While many believe that quartz watches are more precise due to their higher beat rate, modern mechanical watches can often match their accuracy. This article explores the factors that influence watch accuracy and evaluates whether mechanical or quartz watches are indeed the better choice.
Understanding Precision in Watches
Watch precision is a complex interplay of frequency, stability, and adjustment. Quartz watches and mechanical watches operate differently and thus have different inherent advantages. The accuracy of a quartz watch is ensured by an extremely precise oscillating part, while a mechanical watch's precision relies on a balance wheel, escapement, and the consistent winding and arm movement of the wearer.
Comparing Quartz and Mechanical Watches
Quartz Watches: These watches use a quartz crystal oscillating part, which beats at a frequency of 32,768 beats per second. This high frequency provides a more stable and accurate timekeeping mechanism. Modern quartz watches can also be enhanced with hydrogen or liquid helium for further precision, and some High Accuracy Quartz (HAQ) models can achieve astonishing accuracies, such as the Omega Megaquartz, which operates at 24 million Hertz per second.
Mechanical Watches: Mechanical watches typically beat at 4 to 8 beats per second, meaning they are naturally less precise. However, they offer the advantage of adjustment through winding, allowing them to be finely tuned for optimal performance. Despite this, mechanical watches are still susceptible to environmental factors like temperature and humidity, which can affect their accuracy.
The Frequency Factor
To understand why a higher frequency is crucial for accuracy, let's consider the frequency of different watches. A pendulum clock, which is used for timekeeping, can operate at a frequency of 2 beats per second. Watches from the 1940s and some contemporary models can achieve a frequency of 5 beats per second, or 18,000 per hour. Modern watches typically run at 28,800 beats per hour, or 8 beats per second. Some high-end models, such as Longines Zenith and Grand Seiko, can achieve a frequency of 36,000 beats per hour. The higher frequency divides the potential error into smaller fragments, thereby enhancing the accuracy of the watch.
Stability and Precision Enhancements
Stability is another critical factor in watch accuracy. Quartz watches, with their higher frequency oscillating parts, offer excellent stability. Engines like Omega and Citizen have developed thermocompensation techniques to further enhance stability, resulting in watches that are accurate to within -10 seconds per year. In contrast, a standard quartz watch is typically accurate to within 0.7 seconds per day, and HAQ models can achieve accuracies as high as -1 second per year.
Similarly, some mechanical watches, particularly high-end models from brands like Omega, Longines, Grand Seiko, and Citizen, have adopted cutting-edge technology to improve their accuracy. While mechanical watches require more care and adjustment, they can still achieve remarkable precision when properly maintained.
Emotional vs. Practical Considerations
While practical considerations such as accuracy are crucial, there are also emotional factors that contribute to the appreciation of mechanical watches. The craftsmanship, tradition, and historical significance of mechanical watches are undeniable. These watches often reflect a long lineage of horological expertise, which is a truly awe-inspiring aspect of horology.
Despite their technical limitations, many watch enthusiasts hold mechanical watches in high regard. The aesthetic appeal, the connection to a rich horological heritage, and the personal satisfaction of owning a beautifully crafted mechanical timepiece make them a cherished possession.
In the end, the choice between a mechanical and a quartz watch comes down to individual preferences and needs. Quartz watches offer unparalleled accuracy and reliability, while mechanical watches provide a unique experience and appreciation of fine craftsmanship. And given the current technological advancements, a well-made quartz watch is likely to be the more sensible and reasonable choice today.