Vacheron and Constantin 21 Jewel Swiss Pocket Watch Circa 1915 to 1920

The covers screw on and off nicely, very smooth. Vintage hamilton 992b 21 jewels stainless steel, railroad grade, pocket watch it looks like nos, with no hairlines at all. These 24 hour dials are getting really hard to find in this condition! These Hamilton 992B's were the best that Hamilton had to offer and with the new ELINVAR Extra hairspring.