Presented for auction by Second Vintage
This exceptional mid-century timepiece exemplifies the golden era of Japanese watchmaking, capturing the sophisticated design language that defined Seiko in the 1960s. The Sportsmatic Deluxe line was engineered to offer a premium automatic experience, combining robust everyday reliability with elevated aesthetic flourishes. With its complex case geometry, recessed crown, and beautifully preserved sunburst dial, this watch stands as a testament to the enduring appeal of vintage Seiko dress watches.
Brand: Seiko
Model: Sportsmatic Deluxe
Reference Number: 427990
Serial Number: 4419722
Movement: Seiko 23 Jewels Automatic
Dial: Silver sunburst with applied faceted indices, showing excellent preservation with only minor age-related spotting
Case Size: 37 mm (excluding the crown)
Case Material: Stainless Steel
Production Year: 1964
Condition: Excellent vintage condition with sharp case geometry and a beautifully preserved dial
Dial and Hands
The dial features a striking silver sunburst finish that plays beautifully with the light, anchoring the elegant aesthetic of the watch. It is adorned with applied faceted baton indices, highlighted by a prominent double baton at the twelve o'clock position. The typography is crisp and deliberate, featuring an applied serif Seiko logo alongside the iconic applied 5 shield. Below the center pinion, the dial bears the printed Deluxe, Water 30 Proof, and Diashock 23 Jewels designations. A framed day-date aperture sits at three o'clock, displaying the Sunday text in a vibrant red. Condition-wise, the dial is remarkably clean and well-preserved, exhibiting only a few microscopic age spots near the eight and nine o'clock markers upon close loupe inspection. The faceted dauphine hands maintain their sharp structural profile while displaying honest, light surface oxidation and micro-wear that is perfectly consistent with the age of the timepiece.
Case and Crystal
The 37 millimeter stainless steel case is defined by its aggressively faceted lug profile, a hallmark of premium vintage Seiko design. The transitions between the polished case flanks and the brushed upper surfaces remain highly distinct, showcasing the factory-intended geometry with impressive clarity. The watch features a recessed crown at the four o'clock position and a dedicated date quickset pusher at three o'clock, both functioning as integral elements of the sleek case silhouette. The case exhibits normal, light handling marks and superficial surface scratches consistent with careful vintage wear, completely devoid of any heavy impacts. The watch is fitted with a domed acrylic crystal that provides excellent clarity and warmth, showing minimal signs of wear. The smooth snap-on caseback is clean and features a crisp engraving of the serial number 4419722 on the exterior, while the interior is correctly stamped with the reference 427990.
Movement
Powering this timepiece is a robust Seiko automatic movement featuring 23 jewels. Visual inspection of the movement reveals a beautifully clean mechanism with bright plates and bridges. The automatic winding rotor is proudly engraved with distinctive red lettering reading Seiko Sportsmatic 23 Jewels. Running in vintage operational condition. Maintains the authentic mechanical character of the era. The timegrapher indicates a performance of -50 to -55 seconds per day.
Strap
The watch is fitted with a handsome black textured strap featuring white contrast stitching. This contemporary pairing beautifully complements the vintage aesthetic of the dial and provides a comfortable, secure fit on the wrist.
Condition
This timepiece is presented in excellent vintage condition. The case retains remarkably sharp edges, particularly along the complex chamfers of the lugs, indicating a life of careful ownership. The silver sunburst dial is stunningly preserved, with the applied furniture remaining bright and the surface showing only faint, localized spotting that adds to its authentic vintage character. The hands display a natural, even oxidation. Overall, it is a highly attractive and mechanically sound example of mid-century horology.
Dimensions
The watch measures 37 millimeters in diameter, excluding the crown and the date pusher.
Remarks
The Sportsmatic Deluxe represents a pivotal chapter in Seiko history, offering a refined dress watch aesthetic without sacrificing durability. The combination of the sharply faceted case, the convenient quickset date function, and the classic silver dial makes this an incredibly versatile piece. It is a watch that commands attention through its subtle details and architectural case lines, making it a highly rewarding acquisition for the discerning collector.
History
Introduced in the early 1960s, the Seiko Sportsmatic line was designed to bring reliable, automatic timekeeping to a wider global audience. The Deluxe variants represented the upper echelon of this family, featuring higher jewel counts for increased longevity, more sophisticated case finishing, and the innovative quickset date pusher. These models laid the critical groundwork for Seiko reputation as a manufacturer capable of producing high-quality, accessible mechanical watches that could rival Swiss counterparts in both design and daily performance.
/ Second Vintage
SKU: SEI-SDJ-0020
















1 / 16
Seiko - Sportsmatic Deluxe - No reserve price - 427990 - Men - 1964
Seiko • 1964
Sold for
€141
Sold on Jul 12, 2026
27 bids88 watching
About This Watch
Discover More Exceptional Timepieces
Explore Current AuctionsThis one found a home.
Get notified when similar pieces drop.










