Dibs on the zrc!
WWII US Navy Hamilton Canteen Watch-the first diver watch-987s movement
Used by Navy Frogmen in Underwater Demolition missions
Hamilton used lead solder under the crystal and the canteen style at the crown
to try to keep water out
These came on a plastic type strap made by Ranger-Tennere in NY
Elgin made their canteen watches post WWII
Haven't been diving in a couple of months, but that hasn't kept me from enjoying some old divers in the office. Wearing the one on the left this week. The 42mm case gives it a nice presence on the wrist, but it has a low profile and is not bulky. The technology behind the super compressor cases is amazing, particularly as developed 50 + years ago.
Let's see some more.