Seiko Cal. 3836 - 657

The Seiko 3836-657 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-30e0f769dd39]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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