Seiko Cal. 4427 - 571

This Spring Drive model from 1977 features a 45mm Gold-Plated case. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-ded478522a03]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1977

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