Seiko Cal. 6646 - 870

The Seiko 6646-870 represents an important milestone in Seiko's 1981 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d24bc006f311]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1981

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