Seiko Cal. 4423 - 666

The Seiko 4423-666 represents an important milestone in Seiko's 1970 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-16544c1440ba]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1970

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