Seiko Cal. 4423 - 930

The 4423-930 is a sought-after Hand-Winding piece from Seiko's golden era. With its 21mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-14627cfedb93]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1967

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