Seiko Cal. 6656 - 731

Released in 1983, the Cal. 6656 with design code 731 was part of Seiko's domestic market collection. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-cd853ceb18d0]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1983

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