Seiko Cal. 6660 - 430

This Spring Drive model from 1979 features a 36mm Gold-Plated case. Powered by the 6660 caliber with 23j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-640c30138de6]

Also known as: Turtle, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1979

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