Seiko Cal. 6661 - 785

The Seiko 6661-785 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6850cfbaadca]

Also known as: Sea Horse, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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