Today I was given a mail-order catalog from 1966: John Plain, which has been in business since 1915.
It's a large catalog with items across the board, much like the Sears and Penney's Catalogs:
I came across a great novelty Belt; Its called the "Big Timer," with an adjustable chain that converts into a necklace. The Watch is a large 4 inches in diameter.
The John Plain Catalog for 1966, page 46.