Seiko Cal. 6686 - 930

The Seiko 6686-930 represents an important milestone in Seiko's 1986 lineup. Powered by the 6686 caliber with 30j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-470efe42e68d]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1986

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