Seiko Cal. 4576 - 228

This Automatic model from 1970 features a 37mm Titanium case. Powered by the 4576 caliber with 30j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-b89c025cd212]

Also known as: Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1970

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