Seiko Cal. 4431 - 384

This Quartz model from 1978 features a 43mm Titanium case. It features a Silver dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-5044e07a00d5]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1978

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