Seiko Cal. 4438 - 539

The 4438-539 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4438 caliber with 33j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-616a04be8d2b]

Also known as: Arnie, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1979

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