Seiko Cal. 6378 - 523

The Seiko 6378-523 represents an important milestone in Seiko's 1981 lineup. Powered by the 6378 caliber with 17j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-54d3c1517567]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

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