Seiko Cal. 6317 - 681

The Seiko 6317-681 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-aa308fd7ed69]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1966

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