Useful information: Will heat and cold affect a watch's accuracy?
Heat and cold will affect the time-keeping ability of a quartz watch. Quartz crystals, whose extremely steady vibrations are responsible for the unrivaled accuracy of quartz watches, are cut so they perform optimally at room temperature, says Fenwick. A temperature of 100 degrees Fahrenheit will throw the timing off by about 1 second a day, as will one of 32 degrees Fahrenheit |
