When scientists opened the watch belonging to the H.L. Hunley commander three years ago, they thought they had the key clue to why the Confederate submarine sank off Charleston, South Carolina.
But the 18-karat gold watch now seems to raise even more questions, despite the finding announced last week that the watch did not slowly wind down but stopped quicklyperhaps the result of a concussion or rushing water.
"All of us were thinking the watch pointed to the crucial moment," said state Senator Glenn McConnell, a Republican from Charleston who chairs the state Hunley Commission. "But I would say instead of the smoking gun, it's more of the smoke that keeps you from seeing."
Hunley: Lost and Found
The hand-cranked Hunley rammed a black powder charge into the Union blockade ship Housatonic on February 17, 1864, becoming the first sub in history to sink an enemy warship.
The Hunley also sank that night with its eight-man crew. It was found 12 years ago off Charleston, raised in 2000, and brought to a conservation lab.
The watch owned by Lt. George Dixon was opened in 2004. It read 8:23, tantalizingly close to historical accounts that the Housatonic sank about around 9 p.m.
McConnell said experts from the National Association of Watch and Clock Collectors said the damp on the Hunley could have made the watch run slow.
So concussion of the explosion might have stopped the watch and sank the Hunley.
But McConnell also said there is no way to tell if the watch was even working that night. It may have already been broken, and Dixon may have continued to carry the expensive watch anyway.
And if the time on the watch was right, it doesn't explain how Confederate soldiers on shore reported a blue light signaling from the Hunley about 45 minutes after the attack on the Housatonic, he said.
McConnell said the fate of the Hunley may be revealed by other clues from the retrieved vessel. In the coming months, scientists will x-ray valves on the pumping system that are encrusted with sediment.
The position may tell whether the sub was taking on water.
When scientists start removing encrusted sediment from the hull, they may find evidence of a rope showing the Hunley was anchored and waiting for the tide to turn, McConnell said.
One theory is that the sub took on water while waiting to return.
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