Seiko Cal. 5228 - 312

The Seiko 5228-312 represents an important milestone in Seiko's 1973 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ce147ab8019a]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1973

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