Ca. Ø56.5mm, ca. 136g, 18K pink gold, coined band, dome signed and numbered, very rare signed calibre, cylinder escapement, quarter hour repeater, signed original enamel dial in very good condition, blued steel hands, in excellent condition, in working order. Only about 500 pocket watches were made by Frederik Jürgensen. According to Knudsen 'The Jürgensen Dynasty', the earliest known number is 4049, made ca. 1815.