10k yellow gold-plated 16 size, 21 jewel Bunn Special pocket watch by Illinois, circa 1924. Clean double-sunk porcelain dial with black Arabic numerals, minute markers and subsidiary constant seconds register. 10k yellow gold-plated screw back and bezel Star watch case company case in good condition. Stem wind, key set 21 jewel 8 adjustments (temperature plus six positions) in good working condition, serial number 4037406.