watchOS 5.3.3 (16U620) for Apple Watch Series 4 (44mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date October 29, 2019 Upload Date October 17, 2019 Filename baa1a91e958da9211f757e1e471e714d3d836e19.zip Filesize 1.3 GiB Identifier Watch4,2
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