Now available at auction from Second Vintage The Seiko Business-A represents a fascinating chapter in the brand's mid-century catalog, designed specifically for the sharp-dressed professional of the 1960s. Combining sophisticated aesthetics with highly practical day and date complications, this model stands out with its unusual and perfectly balanced dial layout, featuring the day window at nine o'clock and the date at three o'clock. Powered by the robust 6206 caliber, the Business-A is a testament to Seiko's mastery of both mechanical reliability and striking, faceted design language during their golden era of watchmaking. Brand: Seiko Model: Business-A Reference Number: 6206-8010 Serial Number: 7200172 Movement: Seiko Caliber 6206B Automatic, 26 Jewels Dial: Silver sunburst dial with applied faceted gold-tone indices, day window at 9 o'clock, date window at 3 o'clock, exceptionally clean Case Size: 35 mm (excluding the crown) Case Material: Gold Plated (SGP) with Stainless Steel caseback Production Year: 1967 Condition: Excellent vintage condition with an exceptionally preserved dial Dial and Hands The dial of this Business-A is an absolute visual delight, presenting a brilliant silver sunburst finish that catches the light beautifully from every angle. It features a highly distinctive layout with a framed day display positioned at nine o'clock and a corresponding date window at three o'clock, creating a harmonious horizontal symmetry. The applied gold-tone indices are incredibly elaborate, featuring a blocky, multi-faceted design that provides immense depth and character. The applied gold-tone Seiko logo sits proudly above the day window, while the crisp black sans-serif typography details the Business-A and Diashock branding. The dial is in outstanding, near-mint condition, showing no visible spots, stains, moisture marks, or print loss. The matching gold-tone dauphine hands remain sharp and highly polished, completing the elegant aesthetic perfectly. Case and Crystal The 35 mm case features Seiko Gold Plating (SGP) and is designed with classic, sweeping lugs and a smooth polished bezel. A signature element of this era is the recessed crown positioned at four o'clock, streamlining the case profile and emphasizing the automatic nature of the movement. The case retains sharp lines and a strong overall profile, showing only honest, light handling marks consistent with careful vintage wear, with no severe rub-through visible on the top profile. The stainless steel screw-down caseback is clearly engraved with the factory markings, including the reference 6206-8010 and the serial number 7200172. The watch is fitted with a domed acrylic crystal that remains clean and clear, offering an unobstructed view of the stunning dial beneath. Movement Inside beats the Seiko Caliber 6206B, a 26-jewel automatic movement renowned for its durability and smooth operation. The visual inspection of the movement reveals a clean, gold-tone rotor and matching bridges, properly stamped with the Seiko branding, jewel count, and caliber designation. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. Timegrapher results indicate -3s to -10s/day with strong amplitude. Strap The watch is paired with a handsome black leather strap featuring contrasting yellow-gold stitching that perfectly complements the gold tones of the case and dial furniture. It is secured with a classic gold-tone pin buckle. Condition Excellent vintage condition. This piece has been wonderfully preserved, with the dial standing out as exceptionally crisp and free of the aging often seen in watches from this decade. The case remains well-defined with normal, light signs of use, making it a highly attractive collector's piece. Dimensions Case size is 35 mm excluding the crown. Remarks Finding a 1960s Seiko Business-A with a dial in this state of preservation is a rare treat. The architectural indices and the symmetrical day-date layout make this a highly distinctive and charming dress watch that wears beautifully on the wrist. History Introduced in the mid-1960s, the Seiko Business series was explicitly marketed to the modern Japanese salaryman and professional class. These watches prioritized clean legibility, elegant proportions, and the everyday utility of automatic winding and calendar functions. The caliber 6206 was a premium workhorse of the era, helping solidify Seiko's reputation for producing watches that could seamlessly transition from the boardroom to daily life. 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). 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. 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-SDJ-0004