Seiko Cal. 6388 - 507

The Seiko 6388-507 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-66a1c81031f3]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1974

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