Seiko Cal. 4431 - 389

The 4431-389 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4431 caliber with 20j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-acd9f804ff40]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1994

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