Seiko Cal. 5666 - 218

The 5666-218 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5666 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-bc5407ddc31a]

Also known as: Panda, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1976

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