Seiko Cal. 6636 - 198

The Seiko 6636-198 represents an important milestone in Seiko's 1988 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-1a5704414f24]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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