Seiko Cal. 6660 - 902

The 6660-902 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6660 caliber with 32j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-69e238fe8ac7]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1970

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