Vintage Swiss-Made Gold-Plated Pendant Watch

This item is a circular vintage pendant watch of Swiss origin, likely dating from the mid-20th century. The case features a yellow gold-toned finish with a multi-tiered structural design. The central perimeter has a polished, flat band, while the upper and lower edges are adorned with a decorative millgrain or beaded textured border, indicative of detailed craftsmanship common in mid-century jewelry pieces. The crystal appears high-domed, suggesting an acrylic or hesalite material typical of this period. A critical marking is stamped on the side of the center band: 'PLAQUE G10 SWISS.' This hallmark confirms that the watch case is gold-plated to a thickness of 10 microns, with 'Plaqué' being the French term for gold plating. The 'SWISS' stamp denotes its manufacturing origin, known for high-quality horological movements. The watch is attached to a fine gold-colored chain, suggesting it was intended to be worn as a decorative necklace. Regarding condition, there is visible superficial wear, including fine surface scratches and significant dirt or oxidation accumulation within the textured borders. The gold plating shows some darkening and patina, particularly near the edges, which is expected for an item of this age. Further inspection of the movement and dial would be necessary to determine mechanical functionality and specific brand identification.