Ucodegen: I have the 300M Chrono Diver in stainless and blue. Its really not a matter of adjustment, I’m just lazy about using the winder when I put it up for the night. When I don’t use the winder, it tends to get a little loose on time.
Speaking of Hamiltons and railroad watches, I have two Hamilton railroad watches, one is a 17 jewel movement and one is a 21 jewel. I also have a pair of Elgin railroad watches, one in gold and one in silver. My dad used to restore watches as a hobby and these were passed to me when he died.