Seiko Cal. 6631 - 364

This Quartz model from 1995 features a 45mm PVD Black case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5b8e6e0f29ac]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1995

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