Seiko Cal. 5261 - 664

The Seiko 5261-664 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d07238c0080c]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1981

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