Seiko Cal. 4423 - 990

The Seiko 4423-990 represents an important milestone in Seiko's 1978 lineup. Powered by the 4423 caliber with 27j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-ee24609b88dc]

Also known as: Shogun, Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1978

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