You'll need to make sure that there is no charge for replacing the battery....plus keep a watch on the guy that changes the battery....it shouldn't take a minute to do it ...... :)
I found a reliable place to get the battery replaced. Couple of times my watch stopped ticking after a new battery, took it back -guy looks at it and says 'needs cleaning; 20 bucks'. Hah! He probably gummed it up with something. Guess they need something to do when business is slow.
About a half-hour a day tweaking it. Nobody else had the patience to do it. I maintained its accuracy to one-billionth of a second. In case you think I am full of BS...here is an updated version of the one we had.
This post was edited by Element 99 at May 30, 2018 12:46 PM MDT