Save your money and buy a sundial......
I only own quartz watches but from what I know, they are adjustable. Ask yourself how much you want to get into watch maintenance to keep it accurate. Spending $200 for a timegrapher. Or pay a shop to do it.
I would return it.
Sidebar.....every quartz watch I buy has 3 weeks to establish it's accuracy or it goes back. I'm talking a few second a week.