Introduction Presented for auction is a refined Seiko Spirit, reference 5E21-6C00. This particular timepiece is a special commemorative edition, produced to mark the 70th anniversary of "Shin-Idemitsu" (IDEX), a prominent Japanese corporation. Combining Seiko's renowned quartz precision with an elegant, ultra-slim profile, this watch serves as both a reliable instrument and a piece of corporate history. Historical / Era context Dating back to February 1996, as indicated by its serial number, this watch belongs to the "Spirit" line, which was Seiko's mainstay for sophisticated, high-quality everyday dress watches. The 5E series quartz movement was celebrated for its thinness and high reliability. This specific model was distributed to employees and associates of IDEX to celebrate their 70th year in business, making it a rarer find compared to standard retail versions. The commemorative engraving on the case back adds a unique provenance to the piece. Condition The watch is in good overall condition. The champagne gold sunray dial is exceptionally clean, with sharp gold baton markers and slim hands that remain in excellent state. The gold-tone case maintains a high polish with only minor hairline scratches typical of light age. The stainless steel case back features the clearly visible IDEX 70th Anniversary commemorative engraving. The watch has been fitted with a brand-new aftermarket black leather strap, providing a fresh look and immediate wearability. The watch is running properly. New battery recently replaced. Specifications Brand: Seiko Line: Spirit Reference: 5E21-6C00 Movement: Seiko 5E21 High-grade Quartz Case Material: Gold-tone / Stainless steel back Case Diameter: 32.5 mm (excluding crown) Dial: Champagne/Gold sunray dial Strap: New aftermarket black leather Lug Width: 18 mm Closing note This Seiko Spirit is a perfect example of Japanese minimalism and precision. Its slim design allows it to sit elegantly on the wrist, making it an ideal choice for formal occasions or daily office wear. For collectors of Seiko or those interested in unique commemorative timepieces, this IDEX anniversary edition offers a distinctive story alongside classic aesthetics.