Seiko Cal. 6313 - 998

The Seiko 6313-998 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-aa4fe2efe9cc]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1979

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