Seiko Cal. 4421 - 372

The Seiko 4421-372 represents an important milestone in Seiko's 1967 lineup. Powered by the 4421 caliber with 34j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-83c7cd84cdee]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1967

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