UHRENFABRIK UNION open face silver pocket watch, Germany around 1920, smooth case, two piece construction enamel dial with Breguet numerals, gilded hands, gold plated 3/4-board-movement, 16 jewels, 1 screwed down gold-chaton, Glashutter gold anchor & -escape wheel, compensation-balance with Breguet- hairspring, precision adjustment, diameter approx. 52 mm, condition 2-3