Seiko Cal. 6660 - 168

This Spring Drive model from 1975 features a 45mm PVD Black case. Powered by the 6660 caliber with 36j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-f76d80c5fc6a]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1975

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