Seiko Cal. 4428 - 564

The Seiko 4428-564 represents an important milestone in Seiko's 1965 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ff560ab8d986]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1965

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