Seiko Cal. 6631 - 880

Released in 1985, the Cal. 6631 with design code 880 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-c5cf82a414a8]

Also known as: Shogun, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1985

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