$53.99 Hamilton 992B Watch Construction | Railway Pocket Watch
File:Vintage Hamilton Pocket Watch, Open Face, Model 1, Grade 992, Size 16s, 21 Jewels, Railroad Grade, Circa 1918 (17126391685).jpg - Wikimedia Commons
Antique 1925 Hamilton 992 railroad Retrograde POCKET WATCH 21j 14K GF case
