Seiko Cal. 4431 - 881

The 4431-881 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4431 caliber with 31j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-f229e90b0b9f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1982

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