Seiko Cal. 5631 - 223

This Hand-Winding model from 1989 features a 44mm Titanium case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-6c1562cad834]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1989

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