Seiko Cal. 6678 - 120

The Seiko 6678-120 represents an important milestone in Seiko's 1970 lineup. Powered by the 6678 caliber with 23j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-2ad8724f7ffa]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1970

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