Seiko Cal. 6317 - 661

The Seiko 6317-661 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-00c7944d9608]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1975

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