Seiko Cal. 6378 - 884

The Seiko 6378-884 represents an important milestone in Seiko's 1979 lineup. Powered by the 6378 caliber with 20j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-f402d2b7681f]

Also known as: Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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