Seiko Cal. 4428 - 186

This Spring Drive model from 1976 features a 45mm Stainless Steel case. It features a Navy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-8a3265c19987]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1976

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