Seiko Cal. 6683 - 166

The 6683-166 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6683 caliber with 19j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-21cbf3b76cd5]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1972

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