Seiko Cal. 6635 - 781

The Seiko 6635-781 represents an important milestone in Seiko's 1986 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d34a6ed15cf0]

Also known as: Monster, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1986

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