Got a beautiful Speedmaster about a month ago. Now it stops running multiple times daily. I can reset the watch time and it runs perfect for a couple hours, then stops again. Spent a good amount on a pre-owned watch that should last me more than a month before requiring a service. Have read plenty of good reports about WatchVaultNYC though. Not their fault they do not know the service history, but should probably test their watches better/longer before selling them to customers.