Seiko Cal. 6638 - 104

The Seiko 6638-104 represents an important milestone in Seiko's 1989 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-e9394af3dbbe]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1989

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