OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
| ✗ | Apple Watch Series 3 (42mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.5 GiB | 9a5d9c44212a16d274694e0502c53d97f36511dc.zip |
| ✗ | Apple Watch Series 3 (42mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.5 GiB | 2a3fa6722d866e44d4add3eeffb57b4b52b64439.zip |
| ✗ | Apple Watch Series 3 (42mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.5 GiB | 63edec6e90aadc31493a2a879071e641a70be25d.zip |
| ✗ | Apple Watch Series 3 (42mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.5 GiB | d5aef1dc2cde7fd4f40a9046bcbbaee412de4bad.zip |
| ✗ | Apple Watch Series 3 (42mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.5 GiB | d9ca308fffde7101fed5538b9cbb5c2adc7e4e53.zip |
| ✗ | Apple Watch Series 3 (38mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.5 GiB | c183285841c9863edb8a3af467b5ba1fbd359db7.zip |
| ✗ | Apple Watch Series 3 (38mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.5 GiB | 883c098fa886df7fec3f4a9a5038917fe4a8b11e.zip |
| ✗ | Apple Watch Series 3 (38mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.5 GiB | 2ea3df3b538e9454ff6f78a2a4b45c233a68dd22.zip |
| ✗ | Apple Watch Series 3 (38mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.5 GiB | 67719527eea2262162f881cbcb70c129cfd57b46.zip |
| ✗ | Apple Watch Series 3 (38mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.5 GiB | d132889552d685c4dfc83b0ae7ba898c7a00d2b6.zip |
| ✗ | Apple Watch Series 3 (42mm, LTE) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.6 GiB | ccd6f45a7cadc915fe267fc5fcf1b634e4775e1c.zip |
| ✗ | Apple Watch Series 3 (42mm, LTE) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.6 GiB | 22368b4d2bd6a112ce2b649b1c8a4574d59d9752.zip |
| ✗ | Apple Watch Series 3 (42mm, LTE) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.6 GiB | 4c8cb62eeefad05049e0175406bd072b2551b5c4.zip |
| ✗ | Apple Watch Series 3 (42mm, LTE) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.6 GiB | 8504be46c1817b6063b186ac93352b3e11caf878.zip |
| ✗ | Apple Watch Series 3 (42mm, LTE) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.6 GiB | 3347a3f47df5d885de813c6dbfff639ba41f5188.zip |
| ✗ | Apple Watch Series 3 (38mm, LTE) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.6 GiB | 64d698b4073783ff4df9299b3dc9d202fa19ae37.zip |
| ✗ | Apple Watch Series 3 (38mm, LTE) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.6 GiB | 83606b8bf14020359d64360b4a52edca2b56a6df.zip |
| ✗ | Apple Watch Series 3 (38mm, LTE) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.6 GiB | 2d04d2a8ba1b318ad06ed0f2520d4f080fa40853.zip |
| ✗ | Apple Watch Series 3 (38mm, LTE) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.6 GiB | 9b47cf1a066f926f6d5e6a337ec707adba71a1a3.zip |
| ✗ | Apple Watch Series 3 (38mm, LTE) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.6 GiB | 8dc29b41c7c2a0a2b5e295fb22cd2f71dcfa34d2.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | b2cff1c7fcd900dab0a0a384207374c4b11d02ce.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | 489ecb0953b907927b59e5e7ff68ea8a474939ae.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | 8e0342d6654b119f1a8212a63d5c21645e6d5999.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | c7d108cad867a3ea8715ebcf5298bc6eabd0fffd.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | 719215786413000f3a25510e7e52f4cb1e05560d.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | 08ed8362e9e788f8db7c38247098a2cfd8584873.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | ed9199b5c823f7d31a70f981510d97509dd2e033.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | 413fc97e54cb3a8d46ebc14d1f5c3fc52de5ee17.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | f77cd4cce8bf9968fbdb7b8c33967760983047e7.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | 19b453539419f9bb693b73bc5a82455d8634ac2a.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | 98f7adcc2c5eed8f59dd453703030a94f1fe6e9a.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | 074770903f20c293127a8b1c6b96757fb97f9676.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | d3b272c0c9f0a9b8cc4d4c4683d2cca279403eaf.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | 9a6038dc74dc1bcd51dab52fec1651a88cfd98cb.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | 2c23256ec8a8b828ecea0feec0dc190d3928313b.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | 9914c4da43cdc4f8e1bd1ef35f573ed91b399edf.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | 0990d6f99a26b33415d2df08d6a75fc6987ef3cf.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | d0c68ec6fee1768d7c2ae79a3093a3d3ee8438bb.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | 18eeebc00396598e0d608a824609da31e43f574d.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | 2f57d968ffb9671d5c8da432739d767caeec372f.zip |
| ✗ | Apple Watch (42mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | fe76687104aa16df3ba0854d6e0003446d6e8e18.zip |
| ✗ | Apple Watch (42mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | 857ff8907d36342a0bcafd94ae7aa4c99561b3d4.zip |
| ✗ | Apple Watch (42mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | b7a4226db986a4aaa6377c2401c49e4e98d3287c.zip |
| ✗ | Apple Watch (42mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | 01e73fdf05f2074f1b07c6e52d0ed6eb2d06818c.zip |
| ✗ | Apple Watch (42mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | 28335badd5a81ff77878b0d99831cec14bd680f0.zip |
| ✗ | Apple Watch (38mm) | watchOS 4.2.2 (15S542) | January 19, 2018 | 1.1 GiB | 7e72ca6d2e570289f2f5d329a750c7ae22071f74.zip |
| ✗ | Apple Watch (38mm) | watchOS 4.2.2 (15S5530d) | December 13, 2017 | 1.1 GiB | 41ed62ff14e280d3cbd1799ea6382422d1fe424e.zip |
| ✗ | Apple Watch (38mm) | watchOS 4.2.2 (15S5534a) | December 19, 2017 | 1.1 GiB | 3ae4f21e6d7ea226fbbb0147664283af29f17f82.zip |
| ✗ | Apple Watch (38mm) | watchOS 4.2.2 (15S5536a) | January 3, 2018 | 1.1 GiB | 7336b802d0521053662cf82e09861ea5dc4cd9e6.zip |
| ✗ | Apple Watch (38mm) | watchOS 4.2.2 (15S5540a) | January 9, 2018 | 1.1 GiB | c575a5b06c26b3b6db1c42ef254c560069997016.zip |