Pentagon Watch, Face and Movement
This pentagon-shaped pocket watch case was patented by Fred Gruen in 1922. Gruen advertising in the 1920s encouraged men to own two watches: one pocket watch and one “strap watch.”
This pentagon-shaped pocket watch case was patented by Fred Gruen in 1922. Gruen advertising in the 1920s encouraged men to own two watches: one pocket watch and one “strap watch.”