Seiko Cal. 4436 - 559

The Seiko 4436-559 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-b001290055ae]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1970

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