Its going to be a little bit of a learning curve, so I hesitate putting my Ace 250 aside, but there are so many features that I do like about it, especially the ability to know frequency.
I took it out to my usual haunt - a park down the alley from my home - and found a timex about 4 inches down. I took it home, and washed it, wound it and it started ticking. That does tell me something about the watch age, and by depth I am saying it was lost at least 4 years ago (it was no longer in the root mass). I was impressed.
I guess all those "takes a licking and keeps on ticking ads were really true.