Seiko Cal. 6684 - 863

The Seiko 6684-863 represents an important milestone in Seiko's 1993 lineup. Powered by the 6684 caliber with 21j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-cbf7f2f3ac5b]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1993

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