Seiko Cal. 4531 - 743

The Seiko 4531-743 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-042bf6c62975]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1987

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