Seiko Cal. 0721 - 432

The Seiko 0721-432 represents an important milestone in Seiko's 1990 lineup. Powered by the 0721 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-8a543ce85451]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1990

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