Seiko Cal. 6664 - 766

The 6664-766 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6664 caliber with 31j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-6ed1e9ced545]

Also known as: Shogun, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1968

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