"Now, in the early 1920s, wristwatches were on their way to dominating the market. When the Pentagon made its debut in 1922, pocket watches still lead in popularity, but the upstart wristwatches overtook them in 1927 and had left them far behind by the early 1930s".

http://www.collectorville.com/fone_mfg_we.htm
http://www.angelfire.com/nc/whitetho/ATTannoc.htm

"The first [telephone] dial service was introduced to the New York metropolitan area in 1922"

This picture, of an original Strowger dial from 1922, is from
http://www.dyz.com/phones/strowger.html

- a website for "Bill's Phones" - a vintage phone shop!
Click to see more

A Handley-Page aircraft propeller in 1922