Seiko Cal. 6643 - 901

This Quartz model from 1965 features a 34mm PVD Black case. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-734dc04e4a4f]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1965

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