Offered in this auction by Second Vintage
This Seiko Seikomatic ref. 6818-8971 represents a standout example of 1960s Japanese watchmaking, blending refined styling with a robust automatic movement. Its gold-tone case is complemented by a remarkably well-preserved silver sunburst dial, offering a sophisticated and original appearance. Featuring a precise timegrapher result of +1-5s/day, this watch demonstrates healthy mechanical performance following a recent service. Excellent examples in this state of preservation are increasingly rare, making this Seikomatic a strong addition to any vintage watch collection.
Brand: Seiko
Model: Seikomatic
Reference Number: 6818-8971
Serial Number: 5930861
Movement: Automatic (timegrapher result: +1-5s/day, indicating healthy movement)
Dial: Silver sunburst with gold indices and gold hands
Case Size: 37 mm (excluding the crown)
Case Material: Gold-tone stainless steel
Production Year: 1965
Condition: Outstanding vintage condition with sharp case lines, clean dial and crystal, running within vintage tolerances
Dial and Hands
The silver sunburst dial remains in superb condition, free from blemishes or discoloration, and the printing is sharp and clear. The applied gold indices and matching gold hands retain their original finish, while the lume plots show uniform, attractive patina consistent with age. The framed day-date windows at 3 o’clock are crisp, enhancing both functionality and charm.
Case and Crystal
The 37 mm gold-tone stainless steel case boasts strong, well-defined lugs and only the lightest signs of wear. The polished surfaces are bright and reflective. The acrylic crystal is free of major scratches and remains clear, providing an unobstructed view of the dial.
Movement
At the heart of this watch is a reliable Seiko automatic movement. With a timegrapher reading of +1-5s/day, it is running within excellent vintage specifications, offering both reliability and accuracy. This performance, supported by a recent servicing, assures the wearer of continued enjoyment, whether in regular use or rotation.
Strap
Fitted with a textured black leather strap featuring orange contrast stitching, the strap is unworn and supple, adding comfort and a contemporary touch that teams well with the warm gold and cool silver of the watch itself.
Condition
This Seikomatic is presented in outstanding vintage condition. The dial and hands are crisp, the case retains its sharp edges and original contours, and the crystal remains clean. The watch is running smoothly within vintage tolerances, as evidenced by a recent timegrapher test.
Dimensions
Case diameter: 37 mm (excluding the crown)
Remarks
A beautifully preserved example of the Seikomatic series, this watch offers rarity, originality, and impressive accuracy for its era. Combining striking vintage aesthetics with top-tier mechanical health, it deserves a place in any serious collection.
History
Launched in the 1960s, the Seikomatic line set new standards for precision and design in Japanese horology. Known for their durability and distinctive mid-century styling, Seikomatics embody Seiko’s heritage of innovation. The ref. 6818-8971 captures the elegance and reliability that made this series a favorite among collectors worldwide.
/ Second Vintage
SKU: SEI11YFBFM000





























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Seiko Seikomatic 金響 (Kinkyō) 6818-8971 (1965)
Seiko • 1965
Sold for
€268
≈ $301
Sold on Dec 21, 2025
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