Seiko Cal. 6657 - 583

This Quartz model from 1968 features a 34mm PVD Black case. With its 19mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-8a89e683bcb4]

Also known as: UFO, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1968

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