Seiko Cal. 6682 - 617

The Seiko 6682-617 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-8c19c3ecf626]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1978

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