Seiko Cal. 4490 - 347

The Seiko 4490-347 represents an important milestone in Seiko's 1976 lineup. Powered by the 4490 caliber with 32j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-485046ffc42c]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1976

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