An INTERNATIONAL WATCH Co. Pocket Watch 750/1000 gold case no. 494767 enamel dial, guilloché case, calibre 31457 American original case and document, mechanism requiring maintenance 750/1000 Swiss standard marks (1880-1934), remarked with Lisbon mark (1891-1937) Dimensões (altura x comprimento x largura) - 5,1 cm; Peso - bruto - 91,6 g. Notes: Vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Portuguese Goldsmiths and Assay Marks (1887 to 1993)", vol. II. Lisbon: IN-CM, no. 28.