Not sure how much faith you have in this forum's ability to take low res photos and interpret them with comfortable accuracy. fiberguy has given you the best advice.
I'm afraid to say the engraving on the case back tends to reduce value rather than adding to it, unless you've got "presented to John Wayne by Ginger Rogers with thanks for a good time" the message content indicating an employer's long service award usually drags us down to the budget end of the catalogue.
I hope you didn't pay a lot for this, I also hope there's more sentimental interest than financial.