Seiko Cal. 5643 - 228

The Seiko 5643-228 represents an important milestone in Seiko's 1976 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5b1a1236ad7e]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1976

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