Seiko Cal. 4420 - 821

Seiko 4420-821

The 4420-821 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-df552ebb59eb]

Also known as: Crown

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
37mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
30m
Dial Color
Champagne
Jewels
29j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1981

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