Seiko Cal. 6636 - 435

The 6636-435 is a sought-after Quartz piece from Seiko's golden era. With its 19mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-83fd7fb87f86]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1982

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