Seiko Cal. 5633 - 971

This Quartz model from 1969 features a 40mm PVD Black case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2bcbc07eb238]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1969

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