Seiko Cal. 6636 - 425

The 6636-425 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-6fff88771fd8]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1976

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