Seiko Cal. 6666 - 764

The 6666-764 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6666 caliber with 18j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-4a8c649d7cc5]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1986

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