Seiko Cal. 6635 - 120

The Seiko 6635-120 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-953b9a71783b]

Also known as: Sumo, Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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