Seiko Cal. 4439 - 358

The Seiko 4439-358 represents an important milestone in Seiko's 1974 lineup. Powered by the 4439 caliber with 30j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-9fbc9d7a0cc2]

Also known as: Shogun, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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