Seiko Cal. 6664 - 817

The Seiko 6664-817 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-849700b4eb11]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1965

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