Seiko Cal. 4439 - 242

The Seiko 4439-242 represents an important milestone in Seiko's 1966 lineup. Powered by the 4439 caliber with 19j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-817ad2bcc335]

Also known as: Turtle, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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