Seiko Cal. 6631 - 127

This Spring Drive model from 1988 features a 40mm Titanium case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-486204726996]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1988

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