Seiko Cal. 5284 - 712

This Spring Drive model from 1971 features a 45mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-2397b257788a]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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