Seiko Cal. 5643 - 757

The Seiko 5643-757 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-7cbf7d7c2739]

Also known as: Rally, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1971

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