Seiko Cal. 4423 - 735

The 4423-735 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-f38b4c7c21ee]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1969

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