Unlike the quartz watch, the mechanical watch isn’t always accurate.Mechanical watch accuracy may be altered due to the mechanical movement used in the design of manual and automatic watches. With this in mind, we’ll discuss the acceptable time mismatch for the mechanical watch.
What Does Time Mismatch Mean?
If you’re not familiar with watch terms, you may be wondering:
“What is time mismatch?”
Time mismatch refers to the variance in watch movements which causes a watch to move too fast or too slow.
Have you ever owned a mechanical watch that seemed to lose/gain a second or more every hour?
Such loss or gain is attributed to what you see on the watch dial. If the second hands don’t agree with the second hands or the time on your clock or smartphone, you may be bothered about accuracy.
Nonetheless, it’s important to state that mechanical watch accuracy isn’t a thing to panic about. In fact, some mechanical watches lose/gain up to six minutes a day.
How Much Time Mismatch is Too Much?
If you own a watch that loses/gains up to 20 seconds per day, then you should be bothered. And the reason is this:
There could be a problem with the internal mechanism of the watch. Such malfunction may be responsible for the delay or speed with the time counter.
What are the Causes of Excessive Time Mismatch?
Most people appreciate mechanical watches for their craftsmanship, not their accuracy. However, if you’re one of those who prefer accuracy to a mere accessory, you should know the things that could cause your watch to run fast or slow.
- Lack of servicing
- Damage to the watch hands
- Exposure to magnetic fields
- Wrong positioning of the watch
- Bad winding habits (such as winding on your wrist)
All the issues mentioned above are some causes of excessive time mismatch.
Acceptable Time Mismatch for the Mechanical Watch
Now that you understand what time mismatch refers to, you should know some basic facts about all watches.
- There are no watches without occasional imprecision. Even quartz watches sometimes lose seconds and need resetting to return to the normal time.
- Watch movements with COSC approval (Swiss approving body) typically have within -4 to +6 seconds variation.
- Chronometer movements are known to be near accurate.
- Mechanical watches often become more accurate after several periods of use.
- Regular winding helps to maintain the proper variation in the mechanical watch.
- Rolex watches lose or add at least/most two seconds per day.
- The more regularly you wear your watch, the greater the chances that it’ll maintain its acceptable time mismatch.
- Store your watch in the right place to keep its accuracy.
It’s true that some people care less whether their watch is accurate or not. We’ll like to add, however, that it’s important to always pay attention to your mechanical watch accuracy.
In all, when a watch losses or gains more than the acceptable time mismatch, it may be the most obvious sign that it needs servicing. Watch your watch wearing habits and opt for resetting with a watchmaker if necessary.