Seiko Cal. 6634 - 477

This Spring Drive model from 1988 features a 42mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-ba105d4e7904]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1988

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