Seiko Cal. 6631 - 426

This Hand-Winding model from 1987 features a 46mm PVD Black case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-5d2ce16516cf]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1987

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