Seiko Cal. 6689 - 638

This Spring Drive model from 1970 features a 42mm PVD Black case. With its 20mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-c1d03a03d210]

Also known as: Pogue, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1970

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