Seiko Cal. 5643 - 136

Released in 1973, the Cal. 5643 with design code 136 was part of Seiko's domestic market collection. With its 19mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-def4aa64260f]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

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