Seiko Cal. 4528 - 597

This Spring Drive model from 1971 features a 43mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-2c764966314f]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

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