Seiko Cal. 4431 - 143

The Seiko 4431-143 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-ee7bb60c594b]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1982

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