Seiko Cal. 6231 - 989

The Seiko 6231-989 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-5e39a34059f9]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1978

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