Seiko Cal. 4431 - 881

Seiko 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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