Help identify Rolex watch

[Nepa]

Hello, I hope I am posting this to the appropriate forum. I have been searching the internet for quite sometime now to try and find a picture of the Rolex that I own, but have had no luck. I aam posting a couple of pictures of the watch in question (pictures are not the greatest quality, terrible digital camera). The face of the watch says Rolex Precision Dustproof Shock Resisting. I am thinking it is likely in the1950's era, but I will leave it to you folks to help me date this one.