Seiko Cal. 6188 - 657

The Seiko 6188-657 represents an important milestone in Seiko's 1983 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7453d789f04b]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1983

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