Quote:
Originally Posted by Rori
My SD43 starts it’s life with me with a +2.5 seconds / day. 1 year, 3 months later its -0.5 a day. The last month the watch lost merely 16sec!
I don’t know if this is considered an issue by the experts.
Update: my watch is never fully charged since it’s off my wrist while sleeping “8 hours” then when I’m exercising “3 hours” then we should add the fact I also alternate with my Tudor.
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The following test is useful (for you and others) just in case you have no instrumentation:
(1) Full watch winding, set correct time
(2) Put watch at rest with dial up
(3) Don't wind, move or touch it.
(4) Measure systematically the accuracy, e.g. after 6, 12, 18, 24 .... hours until the movement has stopped (autonomy)
This simple test gives you an indication of the amplitude decrease with time.
As soon as the amplitude gets < 200 degrees (which you don't see!) the rate goes to - "LARGE" s/d.
If that happens in the first 24 hours after full winding, then this movement very likely has an issue.
That test everybody can do! No need of a timegrapher or any App.