Seiko Cal. 5643 - 743

The Seiko 5643-743 represents an important milestone in Seiko's 1974 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f1e13c3d5982]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1974

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