Seiko Cal. 5641 - 918

The Seiko 5641-918 represents an important milestone in Seiko's 1983 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b346ca3846ed]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1983

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