Seiko Cal. 4596 - 728

The Seiko 4596-728 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-6b9a45f3a804]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1973

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