Under no circumstances remove the protective stickers as this depreciates the watch by 30% and any dealer can tell 3rd party stickers which have been added later to make the watch appear BNIB
Don't wear it to work unless you own the joint. There's a distinct watch pecking order, that will take you above your station and it will end in tears.
I belive Casio are keeping supply of that model down and so you should be inflation proof. Did you have to look far to find such a good example? Did you get a complimentary teaspoon as well?