Seiko Cal. 6643 - 583

Released in 1978, the Cal. 6643 with design code 583 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-5b09ca541438]

Also known as: UFO, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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