Seiko Cal. 4426 - 621

This Spring Drive model from 1971 features a 42mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-eb85528da2f3]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

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