Seiko Cal. 4423 - 316

This Automatic model from 1979 features a 45mm Stainless Steel case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-86643aaa83fc]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1979

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