As a US Navy Instrumentman and mechanical calibration technician in the 70's, I was also a Navy watchmaker. This original watch was made by Hamilton, Benrus, Gruen, and a couple others and they were all the same style. But the purpose of a "Hack" was a mechanical lever that stopped the balance wheel and thereby stopped the watch so a group of military people could synchronize their watches for whatever reason. By pulling out the crown (winder) the hack stops the watch while you set it and then at the same time everyone pushes the crown back in which restarts everyone's watch to the same time. Just like in the movies!
Bulova Response
Great look and feel of the watch. The band could be a little better, seams on the stitching catches a bit, threading through the band.
Nice watch but the band could be upgraded. Will have to see how it works over time but feels a “thin”.
My new everyday watch it looks great and I really like the style