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ISO 10552:2014
Timekeeping instruments - Crowns and sealed tubes - Designs and dimensions
ISO 10552:2014 specifies designs and dimensions of crowns and sealed tubes and their tolerances.
ISO 10552:2014 is applicable to crowns and sealed tubes of mechanical, electromechanical, and electronic wristwatches of water-resistant designs.
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International Organization for Standardization [iso]