Seiko Cal. 6642 - 661

This Hand-Winding model from 1982 features a 41mm Hardlex-Coated Steel case. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-8ccf421fabb2]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1982

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