Seiko Cal. 4578 - 423

The Seiko 4578-423 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-1a7146d7f4ef]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1976

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