Seiko Cal. 4424 - 641

Seiko 4424-641

The 4424-641 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4424 caliber with 27j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-d5e3770c8952]

Also known as: Goldfeather

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1966

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seikata-wm-d5e3770c8952