Seiko Cal. 4432 - 990

The 4432-990 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4432 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-d67d7041a168]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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