Odd Serial Number Question

Hi y’all, new member here; I’m also the new owner of a Seamaster 300M which I absolutely love! Question; the serial number resource online dates this watch to 2007, yet the movement is an 8800 which I read was introduced in 2018. What’s the disconnect here? I was purchased used from a VERY reputable dealer here in Dallas (I’ve bought three Rolex’s from these folks) and it looks brand-new in the box with all the papers.

Am I missing something here? Figured I’d ask the experts….

Seamasters from c.2007 had the 'wave' bezel & date window at 3 o'clock. The watch pictured above does not look 15 years old.

Thanks for confirming. I just can’t explain why all the online references state it’s a 2007 model. This one looks identical to the model posted on Omega’s website as a current model. This also has the laser etched ceramic face with the wave design.

Agreed with above. The serial number readers are okay with vintage but they are useless for modern.