Seiko Cal. 6665 - 790

The Seiko 6665-790 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-34f9dd2df141]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1987

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