Precision of Seiko 8f movements

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I was wondering about the experiences of others who have purchased Seiko watches with the 8f movements (8f32, 8f33, 8f56, etc.) with regard to precision. I am on my second 8f watch and the errors of both are much greater than the advertised +/-20 second per year maximum error. Although these movements seem to be on the way out in the American market (they are readily available elsewhere), they are a very inexpensive way to obtain higher precision than the usual uncompensated 32 kHz movements…

Precision of Seiko 8f movements

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