Seiko Cal. 6635 - 684

This Spring Drive model from 1997 features a 46mm Hardlex-Coated Steel case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ccf81f2121b0]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1997

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