Seiko Cal. 6663 - 657

The Seiko 6663-657 represents an important milestone in Seiko's 1981 lineup. Powered by the 6663 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-2d0479ffcf1d]

Also known as: Pogue

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1981

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