Seiko Cal. 4490 - 556

The Seiko 4490-556 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-b59c647d9815]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1981

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