Seiko Cal. 4430 - 323

Released in 1968, the Cal. 4430 with design code 323 was part of Seiko's domestic market collection. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-415de339bf51]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1968

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