Quote:
Originally Posted by krynski
Depends on the brand.
Generally speaking, a $20 watch has no swiss components and is made with a cheap Japanese movements. I have seen $20 watches sold broken.
If you, lets say, buy a Tag Heuer or a Rolex or Movado, the quality is much better. Often, there will be a screw-down crown, and a screw in back. These ensure better water resistancy. You notice the quality as well. A well-made watch creates less draw on the battery and the battery generally lasts for a longer time period. However, as the watch gets old, more energy is required to run the watch since gears wear down. dirt and grime also accumulate, causing a need for more energy.
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You would be surprised. A $60 g-shock casio watch will only have a deviation of +/- 1 second on an given day whereas COSC certified Swiss mechanical movements only meet a -4/+6 second/day standard (see Breitling, TAG, Rolex, Panerai). Granted 4-6 seconds over a period of ~86400 seconds is peanuts.
Quartz have a huge advantage over mechanical watches in terms of durability and accuracy simply because there are little to no moving parts. For most mechanical watches (unless you can afford a watch with a tourbillon in it) the simple orientation of how you lay your mechanical watch down when you go to bed can swing the accuracy off by a few seconds.
And since this post reminded me of tourbillons: