Seiko Cal. 6381 - 963

The Seiko 6381-963 represents an important milestone in Seiko's 1980 lineup. Powered by the 6381 caliber with 26j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-5ae8aeff84ee]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1980

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