Seiko Cal. 4540 - 431

This Spring Drive model from 1975 features a 42mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-6027920f843e]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

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