Seiko Cal. 6620 - 381

The Seiko 6620-381 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-5f1a3f598cd6]

Also known as: Bullhead, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1991

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