Seiko Cal. 4431 - 390

The Seiko 4431-390 represents an important milestone in Seiko's 1979 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-b253055276a2]

Also known as: Rally, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1979

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