Seiko Cal. 6317 - 820

This Spring Drive model from 1971 features a 39mm PVD Black case. With its 22mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-f20ce0e073b8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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