Seiko Cal. 4431 - 638

This Automatic model from 1984 features a 36mm Hardlex-Coated Steel case. Powered by the 4431 caliber with 28j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-73e4b478f6da]

Also known as: Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1984

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