Seiko Cal. 6678 - 713

The Seiko 6678-713 represents an important milestone in Seiko's 1979 lineup. Powered by the 6678 caliber with 18j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-a3d1b5326e99]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1979

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