Seiko Cal. 6631 - 177

The Seiko 6631-177 represents an important milestone in Seiko's 1993 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-92f4afab6b19]

Also known as: Samurai, Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1993

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