Seiko Cal. 6630 - 831

The Seiko 6630-831 represents an important milestone in Seiko's 1987 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-f5519be8912c]

Also known as: Samurai, Pogue

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1987

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