Seiko Cal. 6646 - 700

This Automatic model from 1976 features a 40mm Two-Tone case. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-669013b33918]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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