Need help on galaxy s3 screen lock options

I have two galaxy s3's and on one of them the screen lock gives me options to change it to how long i want it to wait until my screen locks and asks for a pin number.

However on the other one it is automatically set to immediatley, how can i change this to 4 mins for example, it doesnt give me the options? It locks straight away and its annoying to have to put the pin in every time i pick up the phone as i am on it alot.

Please help? Is there different versions of this S3?

settings-->Security-->Automatically lock