Seiko Cal. 4566 - 573

This Automatic model from 1969 features a 39mm Titanium case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-784984a16ae6]

Also known as: Helmet, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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