Seiko Cal. 5659 - 937

Released in 1980, the Cal. 5659 with design code 937 was part of Seiko's domestic market collection. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-fe4bd4f734f8]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1980

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