Seiko Cal. 5636 - 431

The Seiko 5636-431 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-dd50dd2ee4c2]

Also known as: Crown, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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