Antique Waltham pocket watches are the most valuable ... are handy when you want to learn more about how old your watch is, what model it is, and if it comes from a rare batch.

The auction for John Jacob Astor IV's 14-carat gold Waltham pocket watch was sold to an American buyer. The watch, engraved with the initials JJA, was found with Astor's body when it was recovered ...