Seiko Cal. 4489 - 497

The Seiko 4489-497 represents an important milestone in Seiko's 1971 lineup. Powered by the 4489 caliber with 29j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-097b7ce6d389]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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