Seiko Cal. 4490 - 789

The Seiko 4490-789 represents an important milestone in Seiko's 1979 lineup. Powered by the 4490 caliber with 31j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-db38b38f9a6f]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1979

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