Seiko Cal. 6658 - 766

The Seiko 6658-766 represents an important milestone in Seiko's 1991 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-697d701d7446]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1991

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