Seiko Cal. 6621 - 657

The Seiko 6621-657 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-4ddc7caeb835]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1988

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