Back in 2013 I did a post on the Coral Brock and I recently had the opportunity to work on another that I thought I'd share.
The Coral Brock is a one-year wonder and only produced in 1940. It was part of a small line of models that were offered in rose gold (or gold filled) just before WWII. I guess rose gold, or coral gold, was very fashionable at the end of the 1930s and other manufacturers offered similar models. By the end of the war, priorities and fashions had changed.
The Coral Brock was offered in a solid 14K gold case and had a coral dial with black numerals that paired nicely with the yellow gold Brock was was offered from 1939 through 1952. The Brock actually was offered with many dials, including diamond-outfitted dials. However, the Coral Brock was only shown in the catalogs to have a black numeral dial.