Seiko Cal. 4558 - 789

The Seiko 4558-789 represents an important milestone in Seiko's 1970 lineup. Powered by the 4558 caliber with 25j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-811d1e146c0d]

Also known as: Sumo, Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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