A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Eitan A
Date: 2017 Sep 21, 10:16 -0700
Hi Geoffrey, it would be interesting to know where the derivation comes from. Primarily I have found it used for aviator watches, but I don't know if they took the term from Naval watches.
“Weems demonstrated several of his innovations to Lindbergh, including a bubble sextant that he was helping the National Bureau of Standards to improve, and his prototype Second-Setting Watch: the first true aviator “hack” watch that could be set precisely to the second. (Later, the military realized a major benefit of this precision, and began to synchronize multiple watches for field operations, thus making famous the line “Gentleman, synchronize your watches.”)”