Seiko Cal. 4421 - 337

The 4421-337 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4421 caliber with 20j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-7314c4747f15]

Also known as: Pogue, Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1984

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