Seiko Cal. 6668 - 438

The Seiko 6668-438 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-87b898fa41ee]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

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