Should I Demagnetize a Quartz Watch?
Analogue Quartz: but Magnetism Remaining Inside of the Watch Does Not Affect Its Accuracy, So Keep It Away from Magnetic Sources and Correct the Time. in Case...
Are quartz watches affected by magnetism?
Magnetization is a particular problem for mechanical watches, as it can cause some of the essential running parts, like the balance wheel and hairspring, to stick together and influence timekeeping accuracy. But quartz watches can be affected, too, as they often have steel hands that are sensitive to magnets.
Is it safe to demagnetize a watch?
Should You Demagnetize? Generally, you'll know demagnetization is worth a shot if your watch has suddenly started running quickly or has recently become very erratic in terms of the length of the power reserve and the watch's accuracy over that period of time.