A mechanical watch has a movement that's powered by a mainspring—a coiled wire of metal—that is wound by hand. Once the mainspring is wound, it slowly and evenly unwinds, causing the second hand to move in a smooth, sweeping motion around the watch's face.
Most mainsprings are about 9-13 inches long. The longer the mainspring, the longer your mechanical watch's power reserve, and the longer you can go between windings. Not all mechanical movements are created equal. The attention to detail and craftsmanship that goes into a watch will determine its smoothness and accuracy.
For many aficionados, mechanical movement watches represent the crème de la crème of timepieces due to their traditional pedigree and the intricate work and engineering that must go into creating them. For these enthusiasts, owning a mechanical watch isn't just about telling time, it's a way to express their appreciation for history, refinement, and craftsmanship.
✓ Advantages
- No battery needed - Because a mechanical watch is powered by a hand-wound mainspring, you'll never have to go to a jeweler to replace a battery. When the watch stops ticking, just wind it up.
- Smooth hand movement - For some folks, a smooth sweeping movement on the second hand is more aesthetically pleasing than the "tick tick tick" of quartz watches.
- Character - The engineering and work that goes into a mechanical watch is breathtaking. Inside your watchcase are tiny gears and springs that work together to give you the time.
- Tactile - For some, one of the appeals of a mechanical watch is that the owner must hand-wind it to keep it working. There's something about the ritual of winding your watch at the end of the day that connects you more with time.
✗ Considerations
- Requires regular winding - While most mechanical watch mainsprings can go two days without winding, it's recommended that you wind it once a day.
- Sensitive to the environment - Moisture, dust, shocks, and magnets are the Four Horsemen of the Mechanical Watch Apocalypse. Thankfully, most modern varieties have been designed to withstand these elements.
- Not as accurate - While a well-crafted mechanical watch can keep time to 99.999% accuracy (about +/- 1 second a day), with age and use that accuracy starts to taper off. You'll need tune-ups every 5 to 10 years.
- Expensive - All that craftsmanship and precision engineering that goes into a mechanical watch is going to cost you extra. While there are some good mechanical watches in the sub-$500 range, most are more than that.