Seiko Cal. 4578 - 392

The Seiko 4578-392 represents an important milestone in Seiko's 1971 lineup. Powered by the 4578 caliber with 19j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-30b7e938d536]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1971

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