My g watch says that it's up to date while it's not!

Hello friends,i recently bought a g watch but when i want to update it,it says that device is up to date,but my android wear version is 1.0.1.1405545!
Google play services 8.7.01!
According to my reserches there should be update for it!!
My build number also is kgw42q.
Now could you please help me update my watch?
And i'm some how beginner,please make it as easy as possible!!
Thank you in advance.