Seiko Cal. 4490 - 582

This Spring Drive model from 1976 features a 42mm Two-Tone case. Powered by the 4490 caliber with 30j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-20c9e8b6098c]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1976

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