Seiko Cal. 4424 - 309

The Seiko 4424-309 represents an important milestone in Seiko's 1969 lineup. Powered by the 4424 caliber with 26j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-1498c11c2a1d]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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