Seiko Cal. 5666 - 220

The Seiko 5666-220 represents an important milestone in Seiko's 1982 lineup. Powered by the 5666 caliber with 27j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-12f481febd7d]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1982

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