Seiko Cal. 4423 - 972

This Spring Drive model from 1977 features a 38mm Two-Tone case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-66d8f64a80e8]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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