Seiko Cal. 6664 - 879

The 6664-879 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6664 caliber with 27j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-32f7e4018a31]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1973

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