Seiko Cal. 4431 - 426

This Spring Drive model from 1982 features a 41mm Titanium case. Powered by the 4431 caliber with 17j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-1ed9c9972723]

Also known as: Shogun, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1982

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