Seiko Cal. 4442 - 189

The 4442-189 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4442 caliber with 30j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-4e5e818b7522]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1966

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