Seiko Cal. 6636 - 523

The 6636-523 is a sought-after Solar piece from Seiko's golden era. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-e732dd306cad]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1990

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