Seiko Cal. 3820 - 664

The Seiko 3820-664 represents an important milestone in Seiko's 1980 lineup. Powered by the 3820 caliber with 27j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-05f29750880d]

Also known as: Goldfeather, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1980

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