Seiko Cal. 6315 - 979

This Spring Drive model from 1981 features a 36mm PVD Black case. With its 18mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-b2a57b5494b9]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1981

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