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 1 (42mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 959 MiB | ccc79394d61515207744fb6360a296cdf6261ff5.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 959 MiB | e986d5dbb2a12559d25841355fa8fce27bc7e971.zip |
| ✗ | Apple Watch Series 1 (42mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 959 MiB | d69903f4406d260474a85bf85db68ac687e13a70.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 958 MiB | d17c388ea02bcf9cbae42effc951fe0761ab0332.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 958 MiB | f43d7ec1c49fffe51ff894a9f65b9428ec4af5b6.zip |
| ✗ | Apple Watch Series 1 (38mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 958 MiB | cb22a8ee3653fcb8b9088e64f445e20c106c26b7.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 960 MiB | 9f4e1fb14dfd089ae8a3d906958acae3a1a99174.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 960 MiB | 85108fd1db853bbeeb4f799da89ed6e8d06eb4f1.zip |
| ✗ | Apple Watch Series 2 (42mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 960 MiB | a051c99ebf310bc74e53c3cb9794bcc75d8f4275.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 960 MiB | e8d37051b50a3583a605e8e9c115aae7139c1d7f.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 960 MiB | cd92361ed1be05fa031952bffe1fc0c89e7debfb.zip |
| ✗ | Apple Watch Series 2 (38mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 960 MiB | f28de031237206a7a5e94872fc01b6ec625b38fa.zip |
| ✗ | Apple Watch (42mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 944 MiB | ff024c3020c7692548aad89309019c23f16e06c9.zip |
| ✗ | Apple Watch (42mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 943 MiB | da430a7f4473595cedb662c5360bf60c7c8ff04d.zip |
| ✗ | Apple Watch (42mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 943 MiB | e55cdc50b6bf5a014b4678083415802880a9234c.zip |
| ✗ | Apple Watch (38mm) | watchOS 3.1.3 (14S960) | January 23, 2017 | 943 MiB | cbb0bf8601957a3d19e1a468246ae14664a54dc6.zip |
| ✗ | Apple Watch (38mm) | watchOS 3.1.3 (14S958) | December 21, 2016 | 943 MiB | d1ee2fe697ed49191a0d04f3197efd4d15626843.zip |
| ✗ | Apple Watch (38mm) | watchOS 3.1.3 (14S959) | January 9, 2017 | 943 MiB | f4af69a9f3597960bf11bea52674976298839ec7.zip |