Seiko Cal. 4439 - 937

The Seiko 4439-937 represents an important milestone in Seiko's 1982 lineup. Powered by the 4439 caliber with 20j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-dff4763af8e8]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1982

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