Seiko Cal. 6637 - 116

This Spring Drive model from 1974 features a 36mm Two-Tone case. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-d62cfc2f229e]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1974

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