Seiko Cal. 4423 - 320

The Seiko 4423-320 represents an important milestone in Seiko's 1984 lineup. Powered by the 4423 caliber with 18j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-fc8cde71e71d]

Also known as: Rally, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1984

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