Seiko Cal. 6631 - 566

The 6631-566 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6631 caliber with 36j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-57833b8cc1a0]

Also known as: Goldfeather, Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1989

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