Seiko Cal. 4431 - 285

This Automatic model from 1985 features a 36mm Titanium case. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-000387e55cef]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1985

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