Seiko Cal. 5641 - 579

The Seiko 5641-579 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-e44d3ee89532]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1966

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