REF. 646, MOVEMENT NO. 880’481, CASE NO. 506’288, MANUFACTURED IN 1938

Reference 646 represents an interesting chapter in Patek Philippe's production during the late 1930s and 1940s. Launched in 1937 and produced until 1943, it was available in both yellow and pink gold . The present example, manufactured in 1938, is cased in 18k gold and measures 46 mm in diameter, a substantial and confident size for a pocket watch of this era . It is distinguished by a gilt two-tone dial, a finish that lends the watch a warmth and visual depth rarely encountered. The rarity of the reference is further underscored by the fact that only six pieces are known to the market, making it a genuinely scarce discovery for the discerning collector .