Seiko Cal. 5641 - 665

The Seiko 5641-665 represents an important milestone in Seiko's 1974 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-2ab2e3a6b6e2]

Also known as: Samurai, Pogue

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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