Seiko Cal. 6388 - 221

The Seiko 6388-221 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-35ac710c38b3]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1989

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