Seiko Cal. 5664 - 418

The Seiko 5664-418 represents an important milestone in Seiko's 1991 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-daca1aaa8fcd]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1991

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