Seiko Cal. 6617 - 959

The Seiko 6617-959 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-74a2b275ba54]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

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