Seiko Cal. 4420 - 812

The Seiko 4420-812 represents an important milestone in Seiko's 1976 lineup. Powered by the 4420 caliber with 22j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-d2a3ca301359]

Also known as: UFO, Navigator

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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