Seiko Cal. 4439 - 927

The Seiko 4439-927 represents an important milestone in Seiko's 1973 lineup. Powered by the 4439 caliber with 29j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-2342d359bf93]

Also known as: Sumo, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1973

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