Omega Aqua Terra “TeakWood” Saphire glass scratch?

Hey everyone. I've picked up this beautiful AT on the secondary market, and I noticed that in certain light and angles there is a scratch (or something) which is pretty annoying to look at to be honest. Anybody else had experiance like this? How to solve it?
What would be the price to just replace it? If anyone got some info, please do let me know 🙏🏻🙏🏻