Seiko Cal. 4589 - 638

The Seiko 4589-638 represents an important milestone in Seiko's 1967 lineup. Powered by the 4589 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-61173cc7768d]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1967

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