Seiko Cal. 6378 - 763

This Spring Drive model from 1981 features a 34mm PVD Black case. Powered by the 6378 caliber with 26j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-183a25ab7261]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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