Seiko Cal. 4439 - 937

Seiko 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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