Seiko Cal. 4589 - 638

Seiko 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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