Seiko Cal. 4431 - 402

Seiko 4431-402

This Automatic model from 1965 features a 46mm Stainless Steel case. Powered by the 4431 caliber with 25j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-dbfb4066f882]

Also known as: Monster, Goldfeather

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
150m
Dial Color
Silver
Jewels
25j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1965

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