J. ASSMANN rare big deck watch with luminous- numerals in silver, Germany around 1915, smooth Lucia-case, rear site monogram, two piece construction enamel dial with Roman luminous numerals, constant second at 6, hands later, gold plated 3/4-board-movement, Glashutte gold-lever-escapement, 17 jewels, escape wheel under endstones, gold-screw- compensation-balance with Breguet-hairspring, precision adjustment, diameter approx. 60 mm, needs to be overhauled, condition 2-3