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Erwin Dekker

Introduction
This vintage Seiko Weekdater 6218-8971 is a fine example of Seiko’s mechanical watchmaking from the 1960s, offering elegant design and technical innovation with a practical day-date complication.

Historical & Collector Value
Produced in the mid-1960s, the Seiko Weekdater series represented Seiko’s drive to refine automatic movements and provide practical features for everyday use. The 6218 caliber is notable for its 35 jewels, full calendar function, and smooth sweep, making it highly collectible among enthusiasts of vintage Seiko. The dolphin caseback engraving further adds to its desirability, as it is a hallmark of Seiko’s early waterproof watches.

Specifications

Brand: Seiko

Model: Weekdater

Reference: 6218-8971

Movement: Automatic, Caliber 6218 (35 jewels, Diashock)

Case material: Stainless steel

Bracelet material: Stainless steel (aftermarket, vintage-style)

Case size: approx. 37 mm (excluding crown)

Functions: Hours, minutes, seconds, day-date (English/Spanish)

Serial number: 5900627 (dating to 1965)

Condition
The watch presents in good vintage condition. The silver sunburst dial retains its original finish with light patina consistent with age. The hands and markers remain sharp and legible. The case shows some wear and scratches typical of a watch of this era. The acrylic crystal is clear with minor surface marks. The bracelet is an aftermarket replacement in period-correct style.

Service History

Fully checked and confirmed in working order

Overhauled (OH) for reliable performance
This watch has been professionally serviced, ensuring accurate timekeeping and long-term dependability.

Shipping & Customs
The watch will be securely packaged and shipped with tracking and insurance. International buyers are welcome. Please note that customs duties and taxes are the responsibility of the buyer.

Automatic - Stainless steel

Seiko - Weekdater - No Reserve Price - 6218-8971 - Men - 1960-1969 

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Seiko - Weekdater - No Reserve Price - 6218-8971 - Men - 1960-1969

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