Seiko Cal. 4421 - 391

The 4421-391 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4421 caliber with 26j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-0902ace5ce91]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1983

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