Seiko Cal. 6646 - 298

This Spring Drive model from 1965 features a 39mm Hardlex-Coated Steel case. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-4537be6254f4]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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