Clocks and watches appeared in commercial illustration long before they became status objects, usually as shorthand for precision, reliability, or the promise of a well-ordered life. The subject attracted serious designers: A.M. Cassandre brought his geometric modernism to jewelry and timepiece advertising in the late 1920s, and the motif turns up across formats from lithographed watch posters to magazine covers to antique trade prints. The period originals here span that full range.