Seiko Cal. 4423 - 331

The Seiko 4423-331 represents an important milestone in Seiko's 1972 lineup. It features a Cream dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-f776a42ee201]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1972

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