Seiko Cal. 4423 - 488

The Seiko 4423-488 represents an important milestone in Seiko's 1969 lineup. Powered by the 4423 caliber with 29j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-96108febc539]

Also known as: Monster, Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1969

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