Seiko Cal. 5636 - 959

The Seiko 5636-959 represents an important milestone in Seiko's 1981 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-fb3b3684ad23]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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