Seiko Cal. 5636 - 512

The Seiko 5636-512 represents an important milestone in Seiko's 1981 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-49f8f1f3434a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1981

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