Seiko Cal. 4570 - 378

The Seiko 4570-378 represents an important milestone in Seiko's 1975 lineup. Powered by the 4570 caliber with 25j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-bb95d3094089]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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