Seiko Cal. 4431 - 922

Seiko 4431-922

The 4431-922 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-79fd4d24604d]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
12.1mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Black
Jewels
25j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1965

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