Seiko Cal. 4439 - 239

The 4439-239 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4439 caliber with 18j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-c45ae25c76cc]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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