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Certina | Quality testing | Power reserve check
DescriptionThis involves measuring and photographically verifying the stated power reserves of mechanical watches. These are subject to highly stringent standards. For example, we check that a movement with a power reserve of 80 h will run correctly beyond 80 h.More
This involves measuring and photographically verifying the stated power reserves of mechanical watches. These are subject to highly stringent standards. For example, we check that a movement with a power reserve of 80 h will run correctly beyond 80 h.
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