Seiko Cal. 4423 - 103

This Hand-Winding model from 1972 features a 40mm Hardlex-Coated Steel case. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-224c2d82fe0e]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1972

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