Identifying no.1 smartwatch and resetting forgotten password

Hi, my bro bought a no.1 smartwatch before a 4 years or so and he forgot it’s password. how can I reset it?
I searched google for firmwares etc. but didn’t find anything. it’s seems all sited about it has deleted as well as the official site.
Thanks!

Hi did you solve the resetting problem? I have trouble putting my pattern lock