Antique Gold Chain Has Anyone Ever Heard Of An Alvah Pocketwatch?

Has anyone ever heard of an Alvah Pocketwatch? - antique gold chain

I have an old pocket watch of my grandfather gave me no longer there (in order to answer these questions) and you will find anywhere online. Appears to be gold and a gold chain with a small bottle with a small pin in him. The dial is Alvah and works like new. I think the old one, but I can not find anything online. Who knows?