Seiko Cal. 4531 - 404

The Seiko 4531-404 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-584d120d7296]

Also known as: Bellmatic, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1966

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