Seiko Cal. 4430 - 743

The 4430-743 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-2cb07e3dd781]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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