Seiko Cal. 6642 - 320

Released in 1981, the Cal. 6642 with design code 320 was part of Seiko's domestic market collection. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-77af537bb94f]

Also known as: UFO, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1981

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