Here are the current extended warranty programs that Apple has in place.
https://support.apple.com/service-programs
I believe that your Series 1 is at its end of life stages and no longer covered under any extended warranty programs, you can reach out to Apple to verify.
Call Customer Support (800) MY–APPLE (800–692–7753)
or online https://getsupport.apple.com/
or call AppleCare Support at 1-800-APLCARE (800-275-2273)
Outside the USA—Contact Apple for support and service by phone
See a list of Apple phone numbers around the world.
https://support.apple.com/en-us/HT201232