Seiko Cal. 6231 - 151

The Seiko 6231-151 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-1548764506e5]

Also known as: Sumo, Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1988

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