Quote:
Originally Posted by MK25toLife
So after a month (30 days) if the watch up to 180 seconds (3 minutes) fast, it's ok? (30 days x 6 seconds)
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Yes, techncally that would be OK performance.. Not great performance, but within "Normal"
I see a couple of issues... You say that you set it to a "digital" clock, then a couple of weeks later you notice it is a minute or two off....
That is not a good way to know what your watch is doing. If you are going to "calibrate" for it's known variance, you need to set it first to a known standard. One such as the USNO observatory, or Time.gov, etc., digital clocks are not always very accurate, and computer clocks are notorious for updating many times throughout a week. You must use the same standard and then check it again after a week; then divide the change by the number of days. This will give you an indication of it's variance per day..
As said, the watch is tested to vary no more than -4 to +6 seconds per day, but they typically will be around ~2 seconds fast each day. Yours sounds like it may be around 4 seconds fast each day and that is still normal..
I don't think that, based on your new information, your watch needs to be overhauled at all....