Seiko Cal. 6664 - 921

The Seiko 6664-921 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e0eb3c6f41fd]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1985

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