Vintage Levi's
Jeans Guide - Watch Pocket
This small denim pocket made its appearence in 1902, and has gotten progressively smaller since then due to the
demise of use of what it was initally designed for. It is now
refered to as a coin pocket.
It is also worth noting that you should check the inside of the
stitching of the pocket. If there is a redline or selvedge edge(see
below) on the inside of the pocket then that pair of jeans are quite
rare and
valuable to collectors. They may fetch from the low hundreds
for a pair of jeans in poor condition to well into the thousands for a
mint pair of levis with it. These prices are from watching eBay, individual collectors or
vintage clothing dealers may pay more.

Era:Early 1900's
Jeans were equiped with pocket held by rivet and stitching

Era:1930s-1940s
Jeans have a pocket size between 3.5-4 inches

Era: During World War II
Due to materials rationing, rivets were replaced by bartacking

Era:Present
Pocket on jeans is now smaller and called a coin pocket.

Redline or selvede edge on inside pocket - can either denote highly
collectable vintage jeans piece, reproductions, or fakes.
Fakes, however usually have it on the outside surface of the pocket.