Seiko Cal. 6666 - 352

The 6666-352 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6666 caliber with 19j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-5a00d832a275]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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