Seiko Cal. 6631 - 574

This Spring Drive model from 1999 features a 36mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-1004a6101d86]

Also known as: Shogun, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1999

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