I am a newbie Illinois collector and have just bought my second watch, a Bunn Special serial num 4245127 in a Wadsworth pilot 25yr screw back and front case. My question is could this case be original? The reason I ask is my other Bunn Special a 60hr one has Bunn Special engraved on the inside of the case whereas this one does not. I know I should have asked this question before I bought it but I just couldn't resist it. Also any more information about it would be useful.