Seiko Cal. 4421 - 555

The Seiko 4421-555 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-55e5654b7f00]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1966

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