My work carries a one year no-quibble warranty. I have repaired many watches that other watchmakers have been unable to repair, and am very proud of my ability to diagnose and repair problem watches. But even I make mistakes. If your watch does not run as well as expected, please contact me and I will do my best to remedy the problem. If you need to mail your watch back to me under warranty, you do not need to send another twenty dollars. If the watch was not repaired correctly by me, I will also reimburse you your mailing charge when sending your watch back.