Welcome to the forum and it looks like you made some great finds! Pocket watches are way coool. I have never found one of those but hope to someday.
You will love the V3i. I just got mine about the end of Oct. and am still learning the ins-outs of it. If you get a chance load Magic's Pro program.
Of the Whites detectors I own, Eagle Spectrum, DFX and the V3i the V3i goes way deeper than any of the others. I have found some dimes at close to 10"
with Magic's program and slightly modified field settings(depend on your ground conditions).Deepest quarter hits have been close to 11".
The flexibility Whites built into the V3i to change just about any function is what I really like. If you are not a "tinkerer", just use Magic's program and the stock 10"D2.
Hope to see more posts from you this next year. Merry Christmas