Seiko Cal. 4497 - 721

The Seiko 4497-721 represents an important milestone in Seiko's 1979 lineup. Powered by the 4497 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-d59c07c217c3]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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