This pocket watch is open face, measures about 2 inches diameter. On the inside back plate it reads BUNN SPECIAL MODEL 21829C WADSWORTH QUALITY 10 KARAT GOLD FILLED PAT’S PEND’G 7421830. On the inside works it reads MOTOR BARREL 21 JEWELS, SIXTY HOUR BUNN SPECIAL ILLINOIS WATCH CO. SPRINGFIELD, ADJUSTED TEMP AND SIX POSITIONS 4848187….