Seiko Cal. 6638 - 456

The Seiko 6638-456 represents an important milestone in Seiko's 1993 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-4ffe9ea2bcd4]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1993

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