Seiko Cal. 4428 - 862

The Seiko 4428-862 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-50bb41e05c18]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1981

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