Now available at auction from Second Vintage A superb example of 1970s Japanese horology, this Seiko Actus Reference 6306-8020 impresses with its vibrant sunburst teal dial and outstanding preservation. Blending robust Seiko engineering with refined mid-century design, this Actus is a sought-after piece for collectors and enthusiasts who appreciate vintage reliability paired with distinctive aesthetics. Brand: Seiko Model: Actus Reference Number: 6306-8020 Serial Number: 683550 Movement: Automatic Dial: Blue-green sunburst with silver-tone indices and day-date at 3 o’clock Case Size: 36 mm (excluding the crown) Case Material: Stainless steel Production Year: 1976 Condition: Near-mint condition; timegrapher results show +2 to +3 seconds per day, indicating excellent movement health. Dial and Hands The sunburst teal dial displays exceptional vibrancy, radiating depth and energy in changing light. All applied silver-tone hour markers are crisp and pristine, and the hands present sharp edges with full original finish. The lume plots remain clean with no visible discoloration, a rarity for this model. The day-date window at 3 o’clock retains total legibility and a clean frame. Case and Crystal The 36 mm stainless steel case exhibits sharp, unpolished edges with defined brushing and polished surfaces. The proportions and contours are preserved, and there are no notable marks or dings. The acrylic crystal is clear and free from scratches, contributing to the watch’s overall near-mint appearance. Movement This Actus is powered by Seiko’s dependable automatic movement, celebrated for its durability and smooth operation. On the timegrapher, it performs at +2 to +3 seconds per day, which signals excellent health and reliability far exceeding typical vintage expectations. Strap The watch is paired with a dark brown leather strap featuring a subtle texture that complements the vibrant dial. The strap is in excellent condition, enhancing comfort and presentation without signs of wear. Condition This Seiko Actus remains in near-mint vintage condition, with immaculate case surfaces, a flawless dial, and exemplary movement performance. The timegrapher results confirm the robust health of its automatic caliber. Dimensions Case diameter: 36 mm (excluding the crown) Remarks A beautifully preserved Seiko, distinguished by its rare and distinctive dial and its superb overall condition. Actus models in this state, particularly with such a striking dial hue, are increasingly scarce and highly collectible. History The Seiko Actus series emerged in the 1970s, offering professionals a robust yet stylish automatic option. The 6306-8020 reference exemplifies Japanese craftsmanship from this era, renowned for reliability, clean lines, and appealing practical features such as the day-date display. Appreciated by enthusiasts and collectors alike, the Actus embodies Seiko’s dedication to blending function, innovation, and design. A stellar opportunity to acquire an exceptional vintage Seiko—ideal for both experienced collectors and those beginning their journey into world-class Japanese watchmaking. Payment and Shipping Payment must be completed within 1-3 days after purchase. The watch will be securely packaged and shipped with tracking and insurance for your peace of mind. Please review the pictures carefully before bidding. We strive to showcase the watch from multiple angles for an accurate representation. As with all vintage watches, water resistance is not guaranteed. The watch will be delivered in fully functional working condition. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI-SAX-0001