Seiko Cal. 6660 - 776

The Seiko 6660-776 represents an important milestone in Seiko's 1991 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-efe9026bdf2f]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1991

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