Is this the earliest Omega watch?

by robert dare
(salford england)

What year did Omega start production? I have a small fob watch dated 1882. It is about 1 inch, it is round like a glass marble,the back can be seen all the time with the works,the watch is in a cradle and can be turned,also the cradle has a loop for hanging, at the bottom there is bell on a chain. Is this one of the earlist watches made by Omega?