"Because the Navy said so," Nied said.
But five years after Nied helped preserve a watch that belonged to the H. L. Hunley's Confederate commander, the gag order on most of Nied's work has been released.
Now free to discuss the project, Nied will do just that while serving as a featured speaker at The York Emporium's Civil War day on Saturday.
The event, dubbed the Butternut and Blue, will also feature a dramatic reading of an Ambrose Bierce short story, sing-along of period songs, authors signing books, live music and demonstrations of bugle calls and black powder musketry.
The event is free and will be held from 10 a.m. to 6 p.m. at the York Emporium at 343 W. Market St.
Nied continues to work with some of the research being done on the Confederate submarine.
This fall he is also opening his own horology school, The York Time Institute, at 312 W. Market St. in York.