Seiko Cal. 4558 - 633

This Automatic model from 1977 features a 37mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-529e70a947ac]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1977

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