Seiko Cal. 4523 - 347

This Spring Drive model from 1975 features a 45mm Two-Tone case. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-cf3b6e24a83e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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