watchOS 4.3 (15T5199f) for Apple Watch Series 1 (42mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date March 6, 2018 Upload Date March 2, 2018 Filename 4c7c2fe9c4f7b5bab36f33d57496d6b9709aa625.zip Filesize 1.1 GiB Identifier Watch2,7
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