REEF TIGERLuxury Fashion Watches for Men Multifunction Mechanical Watch with Date Day RGA1699

This watch is ahead 2 minutes. We set it every time to the correct hour. But by the end of the day the time is incorrect. What can we di about thus?

The watch is very nice and wears well. I wish the chrono buttons worked but are only decorative and used to move the month years and not as a stop watch.