Seiko Cal. 6684 - 851

The Seiko 6684-851 represents an important milestone in Seiko's 1996 lineup. Powered by the 6684 caliber with 21j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-7d8c3e773588]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1996

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