Seiko Cal. 4431 - 591

This Quartz model from 1974 features a 36mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-86fc96f2f32a]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1974

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