Seiko Cal. 4428 - 638

The 4428-638 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-df6849ec2fc7]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1987

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