Elgin 18 Size 17 Jewel Pocket Watch

Elgin 18 size 17 jewel, open face, pendant set, nickle, full plate movement with Roman Single Sunk Dial, in Keystone Nickle Case, SS# 11,877,045 (1904)
Elgin began production in 1867 in Elgin, Illinois. It was the largest U.S. watch company, producing a complete line of watches until it closed in the mid-1950s.