Seiko Cal. 5617 - 837

Released in 1980, the Cal. 5617 with design code 837 was part of Seiko's domestic market collection. With its 18mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-8f28bd16aa42]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1980

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