Seiko Cal. 6387 - 788

The Seiko 6387-788 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-f0dadfcf4d6b]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1975

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