Pink gold 750. Smooth "Bassine" case No. 223.444, the caseback with initials engraved by Patek: A.H. Enamel dial with black Roman numerals and red minute dial. 19''' lever movement no. 109.156 with compensation balance wheel, Breguet hairspring, and fine-regulator. D 48.5 mm. With excerpt from the Patek Philippe Archives, which confirms the production in 1897 and the sale in March 1900. Includes a Patek pocket watch box for a larger pocket watch (approx. 55 mm).