Seiko Cal. 4428 - 813

The Seiko 4428-813 represents an important milestone in Seiko's 1967 lineup. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-eca0eb0c6428]

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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