Seiko Cal. 4421 - 519

Seiko 4421-519

The 4421-519 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4421 caliber with 31j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-2b6e0f690738]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Green
Jewels
31j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1972

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seikata-wm-2b6e0f690738