Seiko Cal. 6637 - 606

The Seiko 6637-606 represents an important milestone in Seiko's 1965 lineup. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-e88b5d0f45f2]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1965

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