Seiko Cal. 6689 - 647

The Seiko 6689-647 represents an important milestone in Seiko's 1970 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-bed8e09a213f]

Also known as: Silverwave, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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