Seiko Cal. 6686 - 645

The Seiko 6686-645 represents an important milestone in Seiko's 1997 lineup. Powered by the 6686 caliber with 20j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-ffaf69805df1]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1997

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