Seiko Cal. 6638 - 754

This Quartz model from 1978 features a 37mm PVD Black case. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-30b87834b1ab]

Also known as: Pogue, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1978

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