Seiko Cal. 6663 - 564

The Seiko 6663-564 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-98f861d4181d]

Also known as: Sumo, Goldfeather

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1987

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