Seiko Cal. 6686 - 890

The Seiko 6686-890 represents an important milestone in Seiko's 1979 lineup. Powered by the 6686 caliber with 23j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-8baf0dcfb4a6]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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