watchOS 4.3 (15T5176c) 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 February 7, 2018 Upload Date February 1, 2018 Filename 38cb721086c6e8ace8ce2120856c58b4d5227ab3.zip Filesize 1.1 GiB Identifier Watch2,7
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