Altona - A Swiss 18ct gold full hunter pocket watch

circa 1930, the cream coloured dial marked CHRONOMÈTRE ALTONA, 40mm diameter, with gold coloured Arabic numerals, moon hands, subsidiary seconds register at 6 o'clock and chemin de fer chapter ring spaced with black Arabic minute indicators, signed but unnumbered 16 jewel mechanical crown wind movement decorated with 'The Côtes de Genève', with pumpkin shaped winder, case, 50mm diameter, both covers hinged at 9 o'clock, milled edge and elaborately engine turned all over in two colours, interiors numbered 300033 with Swiss mark for 18ct gold, Chaux-de-Fonds, together with Poinçon de Maître: Hammer With Handle number 121 for Guillod & Co, additionally stamped 18K 0.750, the cuvette similarly marked, 67.5g gross