Seiko Cal. 4523 - 304

This Hand-Winding model from 1969 features a 46mm PVD Black case. It features a Cream dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-3b344897f0d7]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

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