Seiko Cal. 4424 - 857

Seiko 4424-857

The 4424-857 is a sought-after Solar piece from Seiko's golden era. Powered by the 4424 caliber with 36j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-afb211a90be5]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Titanium
Case Width
37mm
Case Thickness
10.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
140m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1986

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