Now available at auction from Second Vintage This Seiko 5 Actus SS is a quintessential example of 1970s Japanese design, combining robust mechanical engineering with striking aesthetics. The Actus line was aimed at a young, style-conscious demographic, and this model delivers with its distinctive faceted crystal and dynamic dial. The "SS" designation (Second Setting) indicates the inclusion of a hacking feature, a notable upgrade for the era. The watch's sharp, angular case and integrated-style bracelet reflect the bold architectural trends of the period, making it a compelling piece for collectors of vintage Seiko who appreciate distinct, era-specific character. Brand: Seiko Model: 5 Actus SS Reference Number: 6106-7690 Serial Number: 309710 Movement: Automatic, Caliber 6106C, 25 Jewels Dial: Emerald green gradient dial with horizontal textured stripes, applied faceted indices, and framed day-date window. Shows minor signs of age. Case Size: 37 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1973 Condition: Good vintage condition with clear signs of authentic wear and a well-preserved dial. Dial and Hands The dial of this Actus is a striking emerald green with a gradient effect that deepens toward the edges. It features a horizontal striped texture that plays beautifully with the light. The applied indices are tall, faceted, and feature black central stripes, mirroring the design of the baton hands. The dial text, including the applied Seiko logo and printed "5 Actus" and "SS 25 Jewels," remains crisp. A framed day-date window sits at three o'clock. The dial is generally well-preserved, though close inspection reveals some minor spotting and subtle signs of aging consistent with the watch's vintage, particularly around the very outer edges. The hands show a light, even patina. Case and Crystal The 37mm stainless steel case features an angular, tonneau-shaped design characteristic of the 1970s. The transition between the brushed upper surfaces and polished flanks is still discernible, though the case shows softening and numerous surface scratches and handling marks indicative of regular use over the decades. The crown is recessed at the four o'clock position. The watch is fitted with a faceted crystal that significantly enhances the visual impact of the dial, though it exhibits several scratches and small chips, particularly along the faceted edges. The solid screw-down caseback bears the serial number and reference details clearly. Movement Powering this timepiece is the Seiko Caliber 6106C, an automatic movement featuring 25 jewels and a hacking seconds function (the "SS" or Second Setting feature). The movement appears clean in the provided images, with the rotor and bridges showing expected signs of age but no obvious signs of corrosion. Running in vintage operational condition. Maintains the authentic mechanical character of the era. The timegrapher results indicate a performance of +58 to +65 seconds per day. Strap The watch is fitted with its original stainless steel bracelet, featuring folded links and a brushed finish. The clasp is stamped with the "Seiko 5 Actus" logo. The endlinks are stamped "XJA260". The bracelet shows moderate stretch and surface wear consistent with the case, accommodating a wrist size of approximately 18.5cm. Condition This Seiko 5 Actus SS is presented in good vintage condition. It exhibits clear, honest signs of wear throughout the case and bracelet, including scratches and softening of the original sharp lines. The faceted crystal shows visible scratches and edge wear. The dial remains highly attractive with its vibrant color and texture, showing only minor, age-appropriate imperfections under close magnification. The movement is operational and visually clean. Dimensions Case Size: 37 mm (excluding the crown) Wrist Size: 18.5 cm Remarks This Seiko 5 Actus is a fantastic representation of 1970s Seiko design language. The combination of the faceted crystal, the textured gradient dial, and the sharp case geometry creates a visually engaging timepiece. The inclusion of the 6106 hacking movement adds a layer of technical appeal. Despite the visible wear, the watch retains its strong vintage character and offers a great opportunity to acquire a distinctive piece of Seiko's history. History Introduced in the late 1960s and prominent throughout the 1970s, the Seiko 5 Actus line was designed to appeal to a younger, more fashion-forward audience. The "5" denoted Seiko's five key attributes: automatic winding, day-date display, water resistance, a recessed crown, and a durable case and bracelet. The Actus models often featured more adventurous dial colors, varied textures, and unique crystal shapes compared to the standard Seiko 5 range. The "SS" models, featuring the hacking Caliber 6106, represented a step up in functionality. These watches perfectly encapsulate the bold design ethos of the 1970s and remain highly collectible today for their unique aesthetic and reliable mechanics. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and very securely packaged, and shipped with tracking and insurance for your peace of mind. We ship via fast express service, with typical delivery in 1–4 business days (destination dependent). Note that with vintage watches, minor signs of wear, aging, or imperfections may be present and are considered normal for watches of this age. Please review all photos carefully before bidding. We strive to photograph each watch from multiple angles for the most accurate representation. The photos form an important part of the description. If there are any concerns of functionality or defects after delivery, make sure to contact us within 3 days of receiving the watch so we can assist you. As with all vintage watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI-SSJ-0011