Seiko Cal. 6316 - 430

The Seiko 6316-430 represents an important milestone in Seiko's 1983 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c9f25f40c36c]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1983

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