Switzerland, early 20th cent. 18 ct. rosé gold. Crown wound. White enamel dial behind glass with black and red arab. numerals for hours and seconds, subsidiary second. Gilded anchor movement, balance with hair spring, marked "Patek Philippe & Cie No.104223 Geneve". Outside cover marked 0750 and numb. 22395, inside cover as well marked and also engraved "Nr 109223 Patek Philippe & Cie Genève". Verso monogr. Diamenter 33 mm, weight ca. 31 g.