This is a Tiffany 18k yellow gold 45mm pocket watch from the 1930s, featuring a beautiful three-tone applied sector dial.
It was manufactured for Tiffany by the prestigious Agassiz company and houses the firm’s highest-grade “Extra” movement with 21 jewels, adjusted to 8 positions, and equipped with refined details such as a swan-neck regulator and wolf’s teeth winding.
The double-backed 18k yellow gold case also uses 18k gold for the inner cover, with matching serial numbers stamped on both the outer and inner covers, as well as on the movement.
The dial showcases a rare combination of vertical, circular, and matte three-tone finishing with applied gold sector markers, along with an inlaid “TIFFANY & Co.” logo—a testament to the era when each piece was produced with exceptional time and craftsmanship.
Both the case and the movement carry dual signatures of Tiffany and Agassiz. The caseback and inner cover are engraved, and the watch comes with its precious original box.