Seiko Cal. 6686 - 637

The Seiko 6686-637 represents an important milestone in Seiko's 1997 lineup. Powered by the 6686 caliber with 17j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-184128259ef9]

Also known as: Goldfeather, Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1997

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