Seiko Cal. 4439 - 738

The Seiko 4439-738 represents an important milestone in Seiko's 1997 lineup. With its 22mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-44ffa112bf25]

Also known as: Sumo, Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1997

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