Seiko Cal. 6636 - 404

The Seiko 6636-404 represents an important milestone in Seiko's 1994 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-a8bf4251caa7]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1994

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