Seiko Cal. 4431 - 409

The Seiko 4431-409 represents an important milestone in Seiko's 1999 lineup. Powered by the 4431 caliber with 20j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-5e42e8afdd70]

Also known as: Turtle, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1999

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