Seiko Cal. 6391 - 808

The Seiko 6391-808 represents an important milestone in Seiko's 1978 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-db9eef17601b]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1978

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