Question about Rolex Daytona 116520 Wrist Watch
Need advice on how to avoid time gain.
Also need help determining if the chronometer registers are broken or if i am using them incorrectly.
Really worth it to bring it in to GOOD watch tech center (or mail it to Rolex in NYC) - expect to spend 'bout $200 for a cleaning and adjustment. This needs to be done every 5 years or so - the price of owning a fine mechanical watch.
Drop into any Rolex retailer for help with using the buttons.....
Posted on Jan 27, 2008
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Posted on Jan 02, 2017
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Apr 16, 2014 | Rolex Watches
Standard-quality resonators of this type are warranted to have a long-term accuracy of about 6 parts per million at 31 degrees C (87.8 F): that is, a typical quartz wristwatch will gain or lose 15 seconds per 30 days (within a normal temperature range of 5 deg C / 41 F to 35 deg C / 95 F) or less than a half second clock drift per day when worn near the body.
If a quartz wristwatch is "rated" by measuring its timekeeping characteristics against an atomic clock's time broadcast, to determine how much time the watch gains or loses per day, and adjustments are made to the circuitry to "regulate" the timekeeping, then the corrected time will easily be accurate within 10 seconds per year. This is more than adequate to perform celestial navigation.
Assuming that you have a computer with internet-synced time and good internet, meaning around 1/100 second accuracy, why not compare the watch to the computer over the space of a week?
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