We are not going to be able to help with a specific watch movement serial number which I think is what you are asking. For that, you will need to get an Omega "extract from the archives" which is what KeithS is referring too. If your watch is modern (approximately 20 years old or less then that will not work). If you want to pursue the "extract" then check with your nearest Omega Boutique. You can also search this forum for more on ordering the "Extract" If you want more general information about a movement serial number then this is a good site to bookmark. It provides serial number production during a range of years up through 1998. http://chronomaddox.com/omega_serial_numbers.html Unfortunately, I am not sure what the number you ask about represents. For us to be more helpful, you will need to be detailed about the Seamaster with what you wish to know.
It is new enough that some with access to Omega's 'net should be able to look it up. The real question is whether or nor someone will do that to help out, as the OP was lacking a lot in hellos, pleases and thank yous -- which is not good for their very first post on OF.