Seiko Cal. 4425 - 636

The Seiko 4425-636 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-29eb63988c65]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1981

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