Seiko Cal. 4431 - 690

This Spring Drive model from 1986 features a 45mm Titanium case. With its 22mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-4aaa31e7f77d]

Also known as: Pogue, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

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