Seiko Cal. 6653 - 650

This Spring Drive model from 1981 features a 42mm Hardlex-Coated Steel case. Powered by the 6653 caliber with 23j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-5b4d18e9e83b]

Also known as: UFO, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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