Seiko Cal. 6388 - 131

The Seiko 6388-131 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-3073a5406b70]

Also known as: UFO, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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