Seiko Cal. 6681 - 280

The Seiko 6681-280 represents an important milestone in Seiko's 1982 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-175809ade1fd]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1982

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