Seiko Cal. 5631 - 238

The Seiko 5631-238 represents an important milestone in Seiko's 1999 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-45f2b1762a89]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1999

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