Seiko Cal. 4431 - 422

This Spring Drive model from 1990 features a 44mm PVD Black case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-6318db56bd73]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1990

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