watchOS 4.3 (15T212) 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 29, 2018 Upload Date March 19, 2018 Filename 48bb5408278bb0576a64e9274a22508f19a1c1e2.zip Filesize 1.1 GiB Identifier Watch2,7
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