Seiko Cal. 5689 - 439

The Seiko 5689-439 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-a924b77526d9]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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