Presented for auction by Second Vintage This elegant timepiece represents the quintessential Japanese dress watch aesthetic of the mid-twentieth century. The Seiko Skyliner was designed to offer a slim, sophisticated profile without sacrificing the robust mechanical reliability the brand was building its global reputation upon. With its expansive dial aperture and finely polished details, this watch commands a refined presence on the wrist, appealing directly to collectors who appreciate understated vintage elegance and mechanical purity. Brand: Seiko Model: Skyliner Reference Number: 3400430 Serial Number: J15006 Movement: Manual wind, caliber 402 Dial: Silver sunburst dial with applied gold-tone faceted indices, exceptionally clean condition with no notable spotting Case Size: 36 mm (excluding the crown) Case Material: Gold filled Production Year: October 1961 Condition: Excellent vintage condition with a remarkably preserved dial and honest case wear Dial and Hands The dial of this Skyliner is a masterclass in mid-century minimalist design, featuring a brilliant silver sunburst finish that catches the light beautifully from every angle. It is adorned with applied gold-tone faceted baton indices, distinguished by a prominent double baton at the twelve o'clock position. The gold-tone dauphine hands remain sharp and highly legible. The crisp black typography includes the stylized Seiko Skyliner signature below twelve o'clock and the 21 Jewels Diashock text above six o'clock. Visual inspection reveals an exceptionally clean dial surface, entirely free of the heavy moisture spotting, staining, or edge degradation that frequently afflicts watches of this era. The preservation of this dial is a significant highlight, offering a pristine and highly attractive face. Case and Crystal A domed acrylic crystal protects the dial, enhancing the vintage warmth of the watch while maintaining clear visibility with no deep or distracting scratches. The 36 millimeter gold-filled case features an elegant, slim profile with gracefully sweeping lugs that sit comfortably against the wrist. The case exhibits honest signs of vintage wear, including superficial surface scratches and light handling marks along the polished flanks and lug profiles, consistent with careful use over the decades. The caseback clearly displays the Seiko Skyliner engraving alongside the J15006 serial number, while the inner markings confirm the gold-filled construction and 3400430 reference code. Movement Powering this elegant dress watch is the beautifully finished Seikosha caliber 402 manual wind movement, featuring 21 jewels and Seiko's proprietary Diashock anti-shock system. The movement presents cleanly in the photographs, with bright bridges and clearly legible red engraved caliber and jewel count markings. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher results indicate an impressive performance of -5 to -8 seconds per day with strong amplitude. Strap The watch is fitted with a distinctive dark brown textured leather strap. This strap is detailed with striking tri-color heavy contrast stitching in white, tan, and brown tones, adding a unique visual dynamic to the classic gold-tone case. It is secured with a traditional gold-tone pin buckle. Condition This timepiece is graded in excellent vintage condition. The dial is the undeniable star, boasting near-flawless preservation that is highly desirable for collectors. The gold-filled case remains structurally sound with well-defined lines, showing only the expected, honest surface wear of a cherished vintage watch. The mechanical health is thoroughly demonstrated by its exceptionally strong performance metrics. Dimensions The case measures 36 millimeters in width, excluding the crown. Remarks Finding a vintage Seiko Skyliner with a dial in this state of preservation is a rare opportunity. The combination of the classic sunburst dial, sharp dauphine hands, and a highly capable manual wind movement makes this an outstanding addition to any serious collection of Japanese horology. History Introduced in the early 1960s, the Seiko Skyliner was positioned as a sleek, manual-wind dress watch alternative to the brand's thicker automatic models. It utilized dependable Seikosha calibers housed in refined, thin cases, catering to the era's demand for elegant formal wear timepieces. Today, the Skyliner is celebrated by vintage enthusiasts for its timeless design language, embodying the pure, unadulterated aesthetic of Seiko's mid-century golden age. 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: SEIZJLMV40000