Need help confirming Omega Seamaster Aqua Terra is real

Hi. Definitely a newbie when it comes to Omegas, been researching a lot. I purchased an Omega Seamaster Aqua Terra Annual Calendar on watchshopping.com. Read their reviews and they were all good and they claim all watches are authentic. The only thing that had me concerned was the watch number seems to line up with a 2007 production??? but the warranty card says the warranty started on 3/30/2021 and that the watch was new. I honestly don’t know if I’m looking at a fake or not, I don’t have a trained eye. Came with box and warranty card, from Stenstrup originally. What am I looking at here? I still haven’t taken sticker off the back.