Seiko Cal. 6638 - 703

Released in 1980, the Cal. 6638 with design code 703 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6abc0efe62a7]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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