Seiko Cal. 4421 - 339

Seiko 4421-339

The 4421-339 is a sought-after Solar piece from Seiko's golden era. Powered by the 4421 caliber with 19j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-121fb084d71b]

Also known as: Monster, Navigator

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Green
Jewels
19j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1987

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