Seiko Cal. 5657 - 443

Released in 1983, the Cal. 5657 with design code 443 was part of Seiko's domestic market collection. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-00b7af98ecbc]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1983

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