Seiko Cal. 5660 - 654

Released in 1981, the Cal. 5660 with design code 654 was part of Seiko's domestic market collection. With its 18mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-be6801bb4cf6]

Also known as: Bullhead, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1981

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