They have become obsolete
All first-generation Apple Watch models released in 2015 were added to Apple’s legacy list on September 30, according to MacRumors. As a result, these legacy Series 0 watches are no longer eligible for repair or other service at Apple Stores or Apple Authorized Service Providers.
The list of legacy models includes the first-generation Apple Watch Edition with an 18-karat gold case, which cost up to $17,000 at the time of release. The solid gold Apple Watch was discontinued in 2016 and replaced by the ceramic Apple Watch Edition, which cost $1,299. On the software side, watchOS 5 lost compatibility with the solid gold Apple Watch in 2018.
Apple has stopped repairing all Apple Watch Series 0
All other 38mm and 42mm aluminum and stainless steel versions of the original Apple Watch, including the Hermes variants, are also now classified as obsolete.
Apple classifies a product as technologically obsolete if more than seven years have passed since the company stopped selling it. The original Apple Watch was discontinued in September 2016 after the release of the Apple Watch Series 2 and Series 1, so the first-generation models recently crossed that seven-year mark.
