Introduction The Seiko Seikomatic-R is a refined example of Seiko’s early automatic watchmaking excellence from the 1960s. Featuring a clean silver sunburst dial, applied indices, and a practical date display, this model reflects the understated elegance that defines vintage Japanese horology. Powered by a 30-jewel automatic movement, it represents a period when Seiko was establishing itself as a world-class manufacture. Historical & Collector Value The Seikomatic line occupies an important chapter in Seiko’s history, positioned as a high-grade automatic series prior to the evolution of Grand Seiko and King Seiko. The Seikomatic-R models are especially appreciated by collectors for their robust Diashock shock protection system and reliable in-house calibers. A distinctive highlight of this piece is the engraved dolphin emblem on the case back. During this era, Seiko used the dolphin (whale) medallion to indicate enhanced water resistance — a symbol that has become highly collectible among enthusiasts. Well-preserved examples with the dolphin case back and original bracelet are increasingly scarce, adding to this watch’s desirability and historical authenticity. The in-house Cal. 8305 (30 jewels) is known for its durability and smooth automatic performance, making this watch not only collectible but also practical for regular wear. Specifications Brand: Seiko Model: Seikomatic-R Reference: 8305-8000T AD Movement: Automatic, Cal. 8305, 30 jewels Case Material: Stainless Steel (SS) Bracelet: Original Seiko stainless steel bracelet Case Size: Approx. 36–37 mm (excluding crown) Functions: Time, Date Case Back: Dolphin (whale) emblem, “Water Proof” engraving Serial Number: 5838635 Condition The watch is in good vintage condition. Dial: Original silver dial with applied indices; minor signs of aging consistent with its age. Case: Light surface scratches from normal use. Dolphin emblem remains visible. Crystal: Minor signs of wear. Bracelet: Original Seiko bracelet; typical stretch and light wear for its age. Movement: Running and keeping time. Date function operates correctly. Crown operation is smooth. Please review all photos carefully as they form part of the description. Service History All functions have been checked and confirmed operational. The watch has not been recently overhauled (OH history unknown), but it has been tested to ensure proper operation at the time of listing. This provides reassurance for immediate use, although a future overhaul may be recommended depending on usage. Shipping & Customs The watch will be carefully packed and shipped via insured international courier service. Import duties, taxes, and customs fees are the responsibility of the buyer. Please check your local regulations prior to bidding.