Seiko Cal. 4490 - 905

The Seiko 4490-905 represents an important milestone in Seiko's 1979 lineup. Powered by the 4490 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-4b02953eff14]

Also known as: Monster, Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1979

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