Seiko Cal. 5636 - 643

Released in 1988, the Cal. 5636 with design code 643 was part of Seiko's domestic market collection. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3eb89bd680e7]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1988

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