Seiko Cal. 5617 - 950

The Seiko 5617-950 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-2aad014501d6]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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