1970s Patek Philippe Ellipse 18k White Gold Blue Dial 3848An exceptionally rare and highly collectible Patek Philippe Ellipse reference 3848, crafted in 18k white gold with a mid size case measuring 27x32mm. Featuring an exquisite blue soleil sigma dial with 18k white gold indexes and matching baton hands. Notably, the dial bears the "sigma" markings, denoted by the small Greek letter at the base. Introduced in the 1970s, sigma dials were part of a collaborative effort by Swiss manufacturers to emphasize the