Seiko Cal. 6646 - 717

The Seiko 6646-717 represents an important milestone in Seiko's 1986 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-cebd03bf0db7]

Also known as: Sumo, Goldfeather

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1986

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