How many years can the new battery of Omega Men's Timekeeping Constellation Watch last?

Hello, if you replace the battery after the sale of Omega, the after-sales service department will give you 1-2 years warranty. If there is no electricity during this period, replace it for free. The service life of general batteries is about 2 years. If you have any questions, just ask. I hope I can help you. Thank you.