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I ran across an interesting article in hr magazine about the Hamilton US Navy Torpedo Boat Chronometer.
This was a departure from Hamilton railroad watches in that it was larger and had more complications. It came in a wooden carry box that could be mounted to the bridge of a ship. It had a 21 j movement and a 56 hour mainspring along with a winding indicator.
When military budgets were cut during the depression, some US Navy vessels entered WWII with one of these watches on the bridge.