Seiko Cal. 6664 - 645

Released in 1980, the Cal. 6664 with design code 645 was part of Seiko's domestic market collection. With its 19mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-e3bee3cb2ebe]

Also known as: Monster, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1980

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