Seiko Cal. 4490 - 391

The Seiko 4490-391 represents an important milestone in Seiko's 1980 lineup. Powered by the 4490 caliber with 32j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-bba3772a0aef]

Also known as: Rally, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1980

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