Bidspirit auction | Antique Swiss Nassau 11 Jewel

Antique Swiss Nassau 11 Jewel Manual Wind Wristwatch in 14K White Gold Plate Case - A Swiss-made Art Deco period manual wind wristwatch. The octagonal case features intricate floral and foliate engraving along the side profiles. The dial, finished in an aged silver and gold tone, displays black Arabic numerals, a geometric inner minute track, and a subsidiary seconds dial at the 6 o'clock position. The hands are crafted in an open-work blued steel cathedral style. The interior case back is struck with a script mark reading Diel above W.G.CO. and the word BELMONT. Below this, the metal purity is marked as 14 K ROLLED GOLD PLATE. The manual wind movement is engraved with the text DIDISHEIM NASSAU and ELEVEN 11 JEWELS. Further markings on the movement include SWISS and TWO 2 ADJUS. A regulator scale near the balance wheel is marked with the letters F, S, A, and R. The dial is printed with the name NASSAU at the upper center and SWISS at the bottom edge. This timepiece needs a crown and stem. Width: 26 mm Length: 35 mm. The watch is in heavily worn, non-running condition. The case shows significant wear to the white gold plating, particularly along the edges and on the reverse where the base metal is exposed (photo 2). A large area of adhesive residue is present on the case back (photo 2). Green verdigris oxidation is visible along the case seams (photo 5). The winding crown and stem are missing, leaving an open aperture on the case side (photo 4). The dial exhibits heavy oxidation, staining, and patination throughout (photo 8). The crystal is present but displays numerous surface scratches (photo 1). The movement appears physically intact but lacks a winding mechanism, and its functional status is unknown (photo 9).