Seiko Cal. 4578 - 576

The Seiko 4578-576 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2078ba86cc68]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1966

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