Seiko Cal. 6646 - 880

The Seiko 6646-880 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-b79ab81498d8]

Also known as: Turtle, UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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