watchOS 5.1.3 (16S535) for Apple Watch Series 3 (42mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date January 22, 2019 Upload Date January 11, 2019 Filename 82deb360bbdbc57899002799e6795665d6a77e07.zip Filesize 1.3 GiB Identifier Watch3,4
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