Seiko Cal. 4421 - 363

The Seiko 4421-363 represents an important milestone in Seiko's 1976 lineup. Powered by the 4421 caliber with 29j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-09290eb6ceee]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1976

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