Omega series quartz watches, bought in August last year, are half an hour slow for several months. I changed the battery. It's been a few days, but it's 5 minutes slow today. Take it to test.

Omega's performance is that the quality is no longer good. I bought a mechanical watch for my husband last month and it has been stopped. I looked it up online. It turns out that this situation is a design problem, which happens from time to time. Then I got angry and gave it back. Fortunately, time is short, otherwise I really don't know what to do. I strongly advise you not to buy European watches in the future. Now you've come forward and admitted it. There is no other way. If you insure once, the cost is not low.