Seiko Cal. 4578 - 326

The Seiko 4578-326 represents an important milestone in Seiko's 1984 lineup. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-642ca2df3be4]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1984

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