Seiko Cal. 4578 - 743

The 4578-743 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-e0ea913530c5]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1975

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