Seiko Cal. 4423 - 779

Released in 1970, the Cal. 4423 with design code 779 was part of Seiko's domestic market collection. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3167fe0497ac]

Also known as: Tuna, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

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