Seiko Seikomatic Slimdate 白霧 841990 (1964)

Now available at auction from Second Vintage A superb expression of mid-century Japanese watchmaking, this Seiko Matic Slimdate exemplifies refined style and innovation. Presented in outstanding vintage condition, this elegant automatic dress watch highlights Seiko’s commitment to craftsmanship during a pivotal era for the brand. With a striking silver sunburst dial, crisp applied indices, and a beautifully preserved case, this Slimdate is a sought-after piece for collectors and enthusiasts alike. Brand: Seiko Model: Seikomatic Slimdate Reference Number: 841990 Serial Number: 4D00546 Movement: Automatic Dial: Silver sunburst with applied indices and date window at 3 o’clock Case Size: 37mm (excluding the crown) Case Material: Stainless steel Production Year: 1964 Condition: Stunning vintage condition with sharp case lines and an exceptionally clean dial. Running at +44/+65 seconds per day on the timegrapher, which indicates a healthy movement for its age. Dial and Hands The silver sunburst dial remains bright with an attractive vintage patina that underscores its authenticity. Applied hour markers are crisp and well preserved, matched by sharp minute and hour hands and a slender central seconds hand. Lume plots on the hands and dial have aged gently and evenly, adding subtle character. Case and Crystal The 37mm stainless steel case is beautifully preserved, featuring strong lugs and well-defined edges. The signature notched bezel presents sharp detail and catches light elegantly, underscoring the watch’s original design intent. The acrylic crystal is clear and free of major imperfections, ensuring unobstructed appreciation of the dial. Movement Driven by Seiko’s robust automatic movement, this timepiece offers reliable vintage performance. According to the timegrapher, the watch runs at +44/+65 seconds per day, indicating sound mechanical health appropriate for this period. Strap The watch is paired with a classic black leather strap that complements its refined style. The strap shows minimal wear and remains supple—perfect for daily wear or display. Condition This Seiko Matic Slimdate is in exceptional vintage condition, showcasing sharp case definition, a remarkably intact dial, and reliable timekeeping within vintage tolerances. Only minimal signs of use are visible, reflecting careful preservation. Dimensions Case diameter: 37mm (excluding crown) Remarks A rarely found example of the esteemed Seiko Matic Slimdate, this watch stands out for its remarkable preservation and timeless design. Collectors will appreciate its originality and strong presence, making it a perfect addition to any vintage collection. History Released in the 1960s, the Seiko Matic Slimdate series demonstrated Seiko’s mastery of automatic dress watches—balancing slim profiles, technical innovation, and understated luxury. This 1964 model reflects the brand’s pursuit of excellence and stands as an enduring symbol of classic Japanese horology. / Second Vintage SKU: SEIODT2D10000