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Erwin Dekker

Collectors and Seiko fans, here’s a spectacular example of late 1960s Japanese watchmaking: the Seiko 5 Actus Ref. 6106-7520, featuring a dazzling gradient blue sunburst dial. Few vintage Seikos offer this level of style and vintage charisma in such remarkable condition. The deep blue dial radiates from dark to vibrant depending on the angle, pairing beautifully with the sharp applied indices and bold hands. Its robust 37mm steel case and cool original bracelet ensure a substantial, comfortable fit up to an 18cm wrist. A true conversation starter, this Seiko 5 Actus is running and keeping time within vintage tolerances—ready to be enjoyed or collected.

Brand: Seiko
Model: 5 Actus "Gradient Blue Sunburst"
Reference Number: 6106-7520
Serial Number: 345257
Movement: Seiko 6106 automatic, day-date, 23 jewels
Dial: Gradient blue sunburst with applied silver indices and day-date window at 3 o'clock
Case Size: 37mm (excluding the crown)
Case Material: Stainless Steel
Production Year: 1973
Condition: Stunning overall condition; dial and hands exceptionally well preserved, case shows minimal wear consistent with careful use. Watch is running and keeping time within vintage tolerances.

Dial and Hands
The star of the show, the gradient blue sunburst dial, is in outstanding condition with a beautiful color transition from dark edge to light center. Applied silver indices and crisp Seiko branding are intact. The hands retain original finish and the lume is clean.

Case and Crystal
The 37mm stainless steel case retains sharp lines with only minor surface marks, presenting extremely well for its age. The acrylic crystal is clear with only light signs of use.

Movement
Powered by the reliable Seiko 6106 automatic movement, with quickset day and date functions. The watch is running smoothly and keeping time within vintage expectations.

Strap
Comes with an original Seiko stainless steel bracelet, fits up to an 18cm wrist. Clasp and links are in excellent, tight condition.

Condition
A stunning, well-preserved vintage Seiko 5 Actus with minimal signs of age. The dial is immaculate, case is sharp, and the bracelet remains tight. Functions operate as intended.

Dimensions
Case diameter: 37mm (excluding crown)
Lug-to-lug: Approx. 42mm
Thickness: Approx. 12mm
Bracelet fits wrists up to 18cm

Remarks
This is a rare opportunity to own a vibrant Seiko 5 Actus, highly prized for its gradient blue dial and excellent preservation. An everyday-wearable classic with undeniable style and historic Seiko character.

History
Introduced in the late 1960s, the Seiko 5 Actus line was designed for young professionals seeking a modern, robust automatic with flair. The Ref. 6106-7520 stands out for its striking sunburst dial and day-date functionality—qualities that made it an icon among period Seiko offerings. Today, these models are cherished for their design and reliability, marking a golden era in Seiko’s history.

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

Automatic - Stainless steel

Seiko - 5 Actus 'Gradient Blue Sunburst' - No Reserve Price - 6106-7520 - Men - 1973

Classical Art & Impressionism

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Classical Art & Impressionism

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Seiko - 5 Actus 'Gradient Blue Sunburst' - No Reserve Price - 6106-7520 - Men - 1973

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