Seiko Cal. 4423 - 431

The Seiko 4423-431 represents an important milestone in Seiko's 1975 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-fa6224fe7f8b]

Also known as: Pogue, Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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