Seiko Cal. 4439 - 787

The Seiko 4439-787 represents an important milestone in Seiko's 1989 lineup. With its 21mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-45b2684af276]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1989

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