Seiko Cal. 6681 - 631

The Seiko 6681-631 represents an important milestone in Seiko's 1987 lineup. Powered by the 6681 caliber with 22j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-e759315b9fcd]

Also known as: Shogun, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1987

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