Seiko Cal. 4421 - 862

Seiko 4421-862

The 4421-862 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4421 caliber with 30j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-13aae9621cb5]

Also known as: Monster, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
15.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Navy
Jewels
30j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1978

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