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Erwin Dekker

This classic Seiko 6602-9990 from the 1960s offers pure vintage charm with its beautifully balanced, minimalist silver sunburst dial and robust hand-wound movement. The sharp indices and original hands provide elegant legibility, while the stainless steel case remains true to the era’s understated style. Collectors and enthusiasts alike will appreciate the well-preserved condition and timeless appeal of this Japanese-made Seiko. A refined piece ready for both daily enjoyment and the vintage watch collection.

Brand: Seiko
Model: 6602-9990
Reference Number: 6602-9990
Serial Number: 026144
Movement: Seiko 6602A, 17 jewels, manual wind, Japan
Dial: Silver sunburst with applied indices, signed “SEIKO” and “17 JEWELS”, date window at 3 o’clock
Case Size: 36mm (excluding the crown)
Case Material: Stainless steel
Production Year: February 1970 
Condition: Very good vintage condition, watch is currently running and keeping time within vintage tolerances

Dial and Hands
The dial presents a striking silver sunburst finish, with sharp applied hour indices and polished baton hands. The printing remains crisp and the luminous plots are present and even. Date window at 3 o’clock is well defined. Hands are original and retain full length with light patina. All lume appears intact.

Case and Crystal
Stainless steel case has been gently worn, showing light surface marks as expected for its age but no significant dings or loss of definition. Lugs remain sharp and edges are well preserved. Signed caseback engravings are clear and legible. Acrylic crystal is clean with minimal surface wear and no major scratches.

Movement
Equipped with the reliable Seiko 6602A manual-wind movement, 17 jewels. Movement is clean, all engravings crisp. Watch sets, winds, and runs well, keeping time within vintage standards.

Strap
Fitted with a new black leather strap featuring brown contrast stitching and a stainless steel buckle. Ready to wear.

Condition
Very good vintage condition overall. Original dial and hands, strong case definition, clean movement, and minimal wear consistent with age. Currently running and keeping time within vintage tolerances.

Dimensions
Case diameter: 36mm (excluding crown)
Lug-to-lug: 42mm
Lug width: 18mm
Thickness: 10mm

Remarks
A well-preserved example of the classic Seiko 6602-9990. Manual wind, elegant lines, and original dial make this a superb entry into vintage Seiko collecting or a stylish addition to any collection.

History
The Seiko 6602-9990 is a mid-century manual-wind classic, representing the precision and reliability of Seiko’s 1960s mechanical watches. With its timeless style and robust movement, it captures the spirit of Japanese watchmaking and remains highly sought after by collectors today.

Payment and Shipping
Payment must be completed within 1-3 days after purchase.
The watch will be securely packaged and shipped with tracking and insurance for your peace of mind.
Please review the pictures carefully before bidding. I strive to showcase the watch from multiple angles for an accurate representation.
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 me after the auction ends.

/ Vintage Watches DK

Manual winding - Stainless steel

Seiko - Unknown - No Reserve Price - 6602-7990 026144 - Men - 1970

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Seiko - Unknown - No Reserve Price - 6602-7990 026144 - Men - 1970

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