As obvious as it is, a watch should be able to keep time reasonably well. While watches running on a quartz movement are kept accurate through the oscillation of a carefully cut quartz crystal, the less accurate mechanical watch is still the standard for luxury. These watches run on the precise movements of a complex series of gears and springs. Kept running through either the movement of a self-winding pendulum or a manually-wound mainspring, these watches inevitably lose seconds a day. The most precise watches in the world undergo rigorous testing, and are called chronometers. Swiss-made watches are tested by the Official Swiss Chronometer Testing Institute, and are accurate to within ten seconds daily. Certifications such as these can mean the difference between a watch that stands the rigors of time, and watches that your grandchildren will need to have serviced weekly.
trj66 Ulysses31 I’m pretty sure they can achieve excellent accuracy, like a lot of other watches, if properly regulated, but I don’t know how they perform out of the box. Most of the criticisms i’ve seen seem to centre around workmanship (which i’m sure no one else will believe but that’s just how it is). I was wondering while reading about their elaborate “oil research” department why they don’t just switch to using silicon-based parts that need no lubricant. Wouldn’t that make the time-keeping more accurate and less susceptible to magnetic fields? Rolex is an odd contradiction of having cutting-edge facilities while not really trying very hard to be the creators of a “superlative” chronometer. I guess it’s cheaper just to print it on the dial and hope people will believe it.