Seiko Cal. 4421 - 854

The 4421-854 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4421 caliber with 18j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-a86d0f4ec6bd]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1977

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