ref.425
Yellow, black dial, diamond indexes

A very fine and extremely rare 18k yellow gold manual-winding rectangle wristwatch ref.425 with black dial and diamond numerals retailed by GUBELIN.
With Patek Philippe Extract from the Archives confirming production of this watch with black dial and diamond indexes in 1938 and its subsequent sale on June 10th, 1939.
This watch is only one known from the market having yellow gold case with black dial and diamond indexes.