Introduction Presented for auction is a remarkably rare and elegant Seiko Quartz, reference 93-3010. This timepiece is a standout in Seiko's history, featuring a striking Lapis Lazuli stone inset on the dial and a case back engraved with "Casing in Switzerland." It represents a high-end luxury segment where Japanese movement precision met European case craftsmanship. Historical / Era context Produced in the 1980s, this watch comes from an era when Seiko was expanding its luxury presence globally. The "Casing in Switzerland" mark is particularly significant; it indicates a rare period where Seiko collaborated with Swiss artisans to produce cases that met the highest aesthetic standards of the European market. The use of natural semi-precious stones like Lapis Lazuli was reserved for their premium boutique collections, making this a highly collectible item for enthusiasts of unique horological designs. Condition The watch is in good vintage condition. The dial is the highlight of this piece, with the blue Lapis Lazuli stone showing beautiful natural golden flecks (pyrite) and no visible cracks. The surrounding black dial and silver-tone indices remain sharp and clean. The stainless steel case and the original integrated mesh-style bracelet show light surface wear and minor scratches consistent with age, but retain their original form and luster. The crystal is clear, allowing the unique textures of the dial to shine through. The crown is adorned with a black cabochon, further emphasizing its luxury status. The watch is running properly. New battery recently replaced. Specifications Brand: Seiko Reference: 93-3010 / 16-5520 Movement: High-grade Quartz Case Material: Stainless Steel (Swiss Cased) Case Dimensions: 23.7 mm (excluding crown) Dial: Black with Lapis Lazuli stone center Bracelet: Original Seiko Stainless Steel Mesh Wrist Size: 16.5 cm Closing note This is a rare opportunity to acquire a Swiss-cased Seiko with a natural stone dial. Its slim, sophisticated silhouette and the deep blue of the Lapis Lazuli make it a piece of jewelry as much as a precision timepiece. It is a perfect addition for collectors who seek the unusual and the high-quality from Seiko's golden era of quartz.