Seiko Cal. 5660 - 650

Released in 1987, the Cal. 5660 with design code 650 was part of Seiko's domestic market collection. With its 19mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-87bb7326eff5]

Also known as: Sumo, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1987

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