Seiko Cal. 5660 - 666

The 5660-666 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5660 caliber with 19j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-b5a745d97239]

Also known as: Turtle, Shogun

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1969

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