Seiko Cal. 5641 - 910

The Seiko 5641-910 represents an important milestone in Seiko's 1984 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-f4321edbba48]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1984

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