Seiko Cal. 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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