Presented for auction by Second Vintage The Seikomatic-R represents a golden era of Japanese watchmaking, where technical innovation met incredibly refined aesthetics. Designed for the discerning professional of the 1960s, this model perfectly encapsulates Seiko's philosophy of creating elegant, self-winding timepieces that required minimal daily interaction, highlighted by the signature recessed crown at four o'clock. With its striking inner fluted chapter ring and radiant dial finish, this watch offers a masterclass in mid-century proportions and timeless sophistication. Brand: Seiko Model: Seikomatic-R Reference Number: 8305-9010 Serial Number: 5506336 Movement: Automatic Caliber 8305B, 30 Jewels Dial: Silver sunburst with applied faceted indices and an inner fluted chapter ring, exceptionally clean and well-preserved Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Date: May 1965 Condition: Excellent vintage condition with sharp case lines and an outstanding dial Dial and Hands The silver sunburst dial is in excellent condition, showcasing a brilliant radial finish that catches the light beautifully. It features faceted applied baton indices with a distinct double marker at the twelve o'clock position, complemented by sharp, polished dauphine hands. A standout architectural element of this reference is the prominent inner fluted chapter ring, which adds significant depth and a dynamic texture to the dial's periphery. A neatly framed date aperture is positioned at three o'clock. The applied Seiko logo and crisp black printed typography remain perfectly intact. The dial is exceptionally clean, showing only the faintest, honest signs of age, remaining entirely free from significant spotting, moisture damage, or surface deterioration. Case and Crystal The 36mm stainless steel case retains its factory lines and sharp lug chamfers, indicating very careful wear over the decades. The transition between the brushed upper lugs and the polished case flanks remains well-defined. A signature feature of this era is the recessed crown positioned at four o'clock, enhancing the sleek, perfectly round profile of the watch on the wrist. The screw-down caseback displays a distinct, deeply engraved dolphin motif, along with crisp serial and reference numbers. The domed acrylic crystal is clear and free from major scratches, providing a warm and unobstructed view of the dial. Honest, light handling marks consistent with vintage wear are present, but the case remains highly attractive. Movement Inside beats the Seiko Caliber 8305B, a highly sophisticated 30-jewel automatic movement. The close-up images reveal that the movement plates and rotor are cleanly finished and beautifully preserved, featuring clear gold-filled engravings. Performing well within expected vintage tolerances; running strong and steady. The timegrapher indicates a deviation of +36 s/d. Strap The watch is fitted with a handsome black leather strap featuring an embossed alligator pattern and a stainless steel pin buckle, perfectly complementing the dressy and refined nature of the timepiece. Condition This timepiece is in excellent vintage condition. The stainless steel case remains sharp and well-defined, while the dial is remarkably well-preserved, maintaining its original factory luster. The caseback engraving remains deep and highly legible, making this a superb collector-grade example. Dimensions Case Size: 36 mm (excluding the crown) Remarks The Seikomatic-R is a brilliant example of Seiko's mid-century design prowess. The combination of the hidden crown, the intricate fluted chapter ring, and the reliable 30-jewel automatic caliber makes this reference a highly desirable piece for both dedicated Seiko enthusiasts and collectors of classic vintage dress watches. History Introduced in the early 1960s, the Seikomatic line represented Seiko's push towards high-quality automatic dress watches. The "R" designation denoted a premium tier within the family, often featuring higher jewel counts, advanced Diashock shock protection, and refined case architectures. The recessed crown was a deliberate design choice by Seiko to emphasize the convenience of their highly efficient automatic winding system, creating a perfectly symmetrical and elegant silhouette that defined a generation of Japanese watchmaking. 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-SMX-0005