Seiko Cal. 5675 - 657

The Seiko 5675-657 represents an important milestone in Seiko's 1987 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1fbada7c5a2b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1987

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