Just off my bench and serviced with much T.L.C. I have for sale a fully serviced Hamilton made in the USA model 992B pocket watch and this is a genuine railroad piece. This is a gold filled case with an etching on the inside of the back. This gold filled railroad case is signed  "Keystone, Victory" and the case serial number is 4,524,207. Across this case is 52mm and there are no personal engravings. The dial is a Hamilton factory melamine Canadian 24 hour piece with medium spade Hamilton hands. The crystal is glass and flawless. The movement is with 21 clean and inspected jewels and please notice all jewels are all in semi raised solid gold jewel settings. This is a double roller over coil Breguet hairspring balance system so positional errors are few. On the mainspring bridge it is written "Adj to temp and 6 positions". This is a stem wind and a lever set model. The serial number for this Hamilton 16 size 992B is C-496,822 which tells me it is from the year 1957.