Seiko Cal. 4423 - 606

This Spring Drive model from 1971 features a 43mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-b377a559ff8c]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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