Seiko Cal. 6638 - 813

This Automatic model from 1978 features a 45mm PVD Black case. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-4638ef908c60]

Also known as: Pogue, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1978

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