Seiko Cal. 4423 - 123

This Automatic model from 1981 features a 44mm Stainless Steel case. Powered by the 4423 caliber with 20j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-84346ec62b8f]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1981

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