Seiko Cal. 4540 - 378

This Spring Drive model from 1983 features a 38mm Gold-Plated case. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-4e63194485e1]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1983

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